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All numbers except '5' are composite numbers, while '5' is a prime number.

Hence, '5' is the odd one out.

All numbers except '4223' are divisible by 13.

Hence, '4223' is the odd one out.

The logic is:

1) 1285 → 8 - 2 - 1 = 5

2) 2213 → 1 - 2 - 2 = -3 ≠ 3

3) 3074 → 7 - 0 - 3 = 4

4) 4172 → 7 - 1 - 4 = 2

Hence, ‘2213’ is the odd one out.

The logic is:

1) 11 → 1³ = 1

2) 246 → 2³ = 8 ≠ 46

3) 327 → 3³ = 27

4) 464 → 4³ = 64

Hence, ‘246’ is the odd one out.

All numbers except '282' are divisible by 4, while 282 is not divisible by 4.

Hence, '282' is the odd one out.

The logic is:

1) 81 = 9²

2) 441 = 212

3) 529 = 232

4) 613 is not a perfect square.

All numbers except '613' are perfect squares.

Hence, ‘613’ is the odd one out.

Except for A, all others are consonants. A is a vowel.
Hence, A is different from the other options.

Given,

Jhelum, Betwa, Chambal, Yamuna.

Here we see all are East flowing rivers except Jhelum. Jhelum is West flowing river.

Hence, the correct answer is Jhelum.

Given,

VI, 7, IX, VII.

Here we see all are Roman numbers (Roman numeral system) except 7.

Hence, the correct answer is 7.

Given,

Quadratic Equation, Cubic Equation, Linear Equation, Real Numbers

All are equations which consists one or more than one variables except Real Numbers.

Real Numbers is a sequence in which numbers are arranged in fixed pattern.

Hence, the correct answer is Real Numbers.

The logic followed here is:

All the given words Naughty, Creative and Sincere are Adjectives while Kids is a noun.

Hence, the correct answer is "Kids".

• Naughty - (comparative naughtier, superlative naughtiest). especially of children behaving badly; not willing to obey a naughty boy/girl.

         (humorous) I'm being very naughty—I've ordered champagne!

• Creative - having the quality or power of creating. resulting from originality of thought, expression, etc.; imaginative: creative writing. Originative, productive (usually followed by of).
• Sincere - (sincerest) 1(of feelings, beliefs, or behavior) showing what you really think or feel synonym genuine a sincere attempt to resolve the problem sincere regret Please accept our sincere thanks.
• Kid - noun, Informal. a child or young person. Used as a familiar form of address.

The logic followed is:

In all the numbers except option (2), the first number is greater than the second. 

Option 1: 625 :: 325

First number > second number.

Option 2: 100 :: 140

First number < second number.

Option 3: 256 :: 136

First number > second number.

Option 4: 36 :: 21

First number > second number. 

Hence, the correct answer is "100 :: 140".

Vixen is the feminine of Fox, not Bullock.

Hence, "Bullock : Vixen" is the correct answer.

The logic followed is:

Option 1 → Flaw : Defeat

Defeat means to prevent something from succeeding. An occasion when somebody fails to win or be successful against somebody else. And due to some lack, we get defeated. Similarly, Flaw is the synonyms of defeat or weakness.

Example- Security researchers are warning of a major new security flaw inside Intel processors, and it could defeat hardware-based encryption and DRM protections.

Option 2 → Vacant : Empty

Vacant and Empty are both synonyms.

Example: The hospital has no vacant beds.

Option 3 → Substitute : Allot

They both are different in meaning from each other.

Allot means to divide a share of work.

Substitute means replacing. to use something or someone instead of another thing or person. 

Option 4 → House : Home

House and Home are both synonyms.

Example: Try not to wake the whole house when you come in!

Hence, the correct answer is "Option 3".

The different words and their meaning in the given lists are as follows:

Ignore → It means to neglect something.

Avoid → keeping away from

Recognize → Identify

Reject → something not accepted.

Hide → to disappear something or conceal.

Forgetting → not remembering

disregarding → neglecting

As, all the given words are negative words except Recognize.

Recognize is a positive word, and its meaning is to identify something.

Hence, "Recognize" is the correct answer.

The logic followed here is:

Except Cauliflower other three are fruits but Cauliflower is a vegetable.

Hence, 'Cauliflower' is different from the other three.

Sunflower is a flower and its seed gives oil.

Cauliflower, Cabbage, and Tomato are vegetables.

Hence, Sunflower is different from the other three.

Eyes, nose, and ears are sense organs. Kidney is not a sense organ.

Hence, kidney is different from the others.

The logic followed here is: 

Fear, angry, and mercy are different emotions.

Whereas,

Game is not a emotion.

Hence, game is the odd one.

The pattern followed here is:

All options except pond are different varieties of plants, while pond an area of water that is smaller than a lake.

Hence, the correct answer is "pond".

Explanation:

Roots:

• A root is a part of a plant that is usually hidden underground.
• Roots have several purposes. They hold the plant in the ground and keep it upright. They take water and food from the soil.
• The roots of a plant have several important functions.
• The root system takes in oxygen, water and nutrients from the soil, to move them up through the plant to the stems, leaves and blooms. 

Seed:

• A seed is an embryonic plant enclosed in a protective outer covering.
• Seeds are the product of the ripened ovule, after fertilization by pollen and some growth within the mother plant.
• The embryo develops from the zygote, and the seed coat from the integuments of the ovule.

Leaves:

• A leaf (plural leaves) is the principal lateral appendage of the vascular plant stem, usually borne above ground and specialized for photosynthesis.
• Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light energy from the sun.

The given terms: Phenology, Ornithoology, Paleobotony, Phytogeography

Phenology. Phytogeography and Paleobotany are the branches of botany while Ornithology is a branch of zoology.

Botany = The study of plants.

Zoology = The study of the animal kingdom.

Hence, "Ornithology" is different from the other three.

The logic follows here is:

In all the pairs except (4), the first number is a multiple of the second.

Option 1 → 24 ∶ 6

36 is the multiple of 6.

Option 2 → 18 ∶ 3

18 is the multiple of 3.

Option 3 → 32 ∶ 4

32 is the multiple of 4.

Option 4 → 42 ∶ 4

42 is not a multiple of 4.

Hence, the correct answer is "42 ∶ 4".

The logic is:

1st number × 7 - 8 = second number

1. 21 ∶ 139 → 21 × 7 - 8 = 147 - 8 = 139

2. 25 : 167 → 25 × 7 - 8 = 175 - 8 = 167

3. 15 : 197 → 15 × 7 - 8 = 105 - 8 = 97 ≠ 197

4. 27 : 181 → 27 × 7 - 8 = 189 - 8 = 181

Except option 3, all options are follow the given logic. thus option 3 is an odd one.

Hence, ‘15 : 197’ is the odd one out. 

Agartala is the capital of Tripura.

Similarly, Chennai is the capital of Tamil Nadu.

Hence, “Chennai” is the correct answer.

The logic followed is:-

Carl Lewis, Usain Bolt, Ben Johnson are all sprinters.

Whereas,

Emil Jacktopek is long - distance runner.

Hence, the correct answer is "Emil Jacktopek".

Hirakud, Almatti, and Mettur are the names of dams.

But Sutlej is the name of a river.

Hence, Sutlej is the correct answer.

Stars, constellation and solar sytem are parts of galaxy.

But celestial is an adjective used to describe the heavenly bodies.

Hence, celestial is the correct answer.

All options except “Drawing” are examples of Outdoor recreational activities, while “Drawing” is an indoor activity.

Hence, “Drawing” is the correct answer.

Hence, ‘456’ is odd one out.

All options except “Spain” are famous dance forms, while “Spain” is a country.

Hence, “Spain” is the correct answer.

All options except “English” are parts of speech of English, while “English” is a language.

Hence, “English” is the correct answer.

All options except “Agra” are examples of great monuments, while “Agra” is a city.

Hence, “Agra” is the correct answer.

All options except “Lead” are examples of non-metals, while “Lead” is a metal.

Hence, “Lead” is the correct answer.

All options except “China” are famous languages of the world, while “China” is a country.

Hence, “China” is the correct answer.

All options except “Tennis” are examples of indoor games, while “Tennis” is an outdoor game.

Hence, “Tennis” is the correct answer.

All options except “Noodles” are examples of beverages, while “Noodles” is a type of solid food.

Hence, “Noodles” is the correct answer.

All options except “Cat” are examples of birds, while “Cat” is an animal.

Hence, “Cat” is the correct answer.

All options except “Sense” are examples of human organs, whereas "sense" is not.

Hence, “Sense” is the correct answer.

All options except “Nobel Prize” are famous awards of India, while “Nobel Prize” is an international award.

Hence, “Nobel Prize” is the correct answer.

All options except “Temperature” are examples of measuring instruments, while “Temperature” is a physical quantity.

Hence, “Temperature” is the correct answer.

All options except “Dell” are famous car brands, while “Dell” is a famous computer brand.

Hence, “Dell” is the correct answer.

All options except “Virus” are examples of diseases, while “Virus” is a microscopic agent.

Hence, “Virus” is the correct answer.

All options except “Geometry” are mathematical operations, while “Geometry” is a topic under mathematics.

Hence, “Geometry” is the correct answer.

The logic followed here is: A clear, transparent and Translucent object allows light to pass through it.

Whereas, an opaque object does not allows any amount of light to pass through it. 

Thus, the word 'opaque' is different from the other three words.

The logic followed is:

In all the given options except option (3), there are some vowel present in the given word whereas in option (3) all are consonant.

Option 1: B E H L N 

The given word has Vowel.

Option 2: E J L S Z 

The given word has Vowel.

Option 3: D K Q V Z 

The given word only has consonant.

Option 4: A C I K T 

The given word has Vowel.

Hence, the correct answer is "Option 3".

The logic follows here is:

Penetrate means to enter or pierce and it's a physical action and rest are all related to thoughts and views and opinions.

Option 1 → Discernment means the ability to judge something well.

Example: He shows great discernment in his choice of friends.

Option 2 → Perception means an opinion or the ability to understand something.

Example: We have to change the public's perception that money is being wasted.

Option 3 → Penetration means having the power to enter or pierce deeply.

Example: These tubes penetrate to all parts of the plant and occur in all parts of the root, stem and leaves.

Option 4 → Insinuation means to introduce or work in; to suggest, without being direct, that something unpleasant is true.

Example: He criticizes his opponents by insinuation rather than directly. 

Hence, the correct answer is "Penetration".

The logic follows here is:

All the activities except option (4) is related to water and are performed in water whereas Driving is related to road. 

Option 1 → Swimming

Swim: gerund or present participle - swimming 

meaning: to move your body through water (तैरना).

Option 2 → Sailing

meaning: (noun) the sport of being in, and controlling, small boats with sails.

Option 3 → Diving

meaning: (noun) the activity or sport of jumping into water or swimming under the surface of the sea, a lake, etc (ग़ोताख़ोरी).

Option 4 → Driving

meaning: (noun) the action or skill of controlling a car, etc (वाहन चलाने या ड्राइव करने का कार्य) and it is not related to water or not performed in water.

Hence, the correct answer is "Driving".

Except T - H, all other pairs of letters are the pairs of opposite letters.

Below given table shows the opposite pair of letters:

G is the opposite letter of T.

Hence, T - H is correct.

The logic followed is:

All the given options except option (3) is a composite number whereas option (3) is a prime number.

Option 1: 15

It is a composite number.

Option 2: 27

It is a composite number.

Option 3: 37

It is a prime number

Option 4: 39

It is a composite number.

Hence, the correct answer is "37".

• Some facts about the Prime numbers:
• A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.​
• The only even prime number is 2. All other even numbers can be divided by 2.
• If the sum of a number's digits is a multiple of 3, that number can be divided by 3.
• No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.
• Zero and 1 are not considered prime numbers.
• Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.
• Prime no between 1 to 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

The logic followed is:

Option 1: (13, 40)

13 × 3 + 1 = 40

39 + 1 = 40

40 = 40

Option 2: (14, 42)

14 × 3 + 1 = 42

42 + 1 = 42

43 ≠ 42

Option 3: (15, 46)

15 × 3 + 1 = 46

45 + 1 = 46

46 = 46

Option 4: (16, 49)

16 × 3 + 1 = 49

48 + 1 = 49

49 = 49

Hence, the correct answer is "Option 2".