1. In the following question, select the odd word from the given alternatives

A. Constellation B. Galaxy C. Star D. Cluster

Answer - Option C
Explanation - Constellation is a a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
Galaxy is a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Cluster is a group of similar things or people positioned or occurring closely together.
All except option (C) are group of stars in different form.
Hence, option C is different from others.
2. In the following question, select the odd letter group from the given alternatives.

A. DFH B. QSU C. MOQ D. VWX

Answer - Option D
Explanation - Except VWX, in all other groups, the subsequent letter is 2 steps forward than the previous letter.

Hence, it is clear from above that option (D) is odd one out.
3. In the following question, select the odd number pair from the given alternatives.

A. 43-6 B. 28-4 C. 50-7 D. 36-5

Answer - Option B
Explanation - 43: 6 * 7 +1
28: 4 * 7 +0
50: 7 * 7 +1
36: 5 * 7 +1
Clearly, 28 is different from others.
4. Select the odd word from the given alternatives.

A. Moon B. Mars C. Saturn D. Jupiter

Answer - Option A
Explanation - Mars, Saturn and Jupiter are planets whereas Moon is the satellite.
Thus Moon is the odd word.
5. Select the odd number from the given alternatives.

A. 13 B. 17 C. 21 D. 23

Answer - Option C
Explanation - Here 13, 17 and 23 are prime numbers whereas 21 is the composite number.
Thus 21 is the odd number.

1. In the following question, select the odd letters from the given alternatives.

A. AEYB B. GKEH C. DHCF D. MQKN

Answer - Option C
Explanation - As,

Thus DHCF are the odd letters.
2. In the following question, select the odd number pair from the given alternatives.

A. 361 B. 289 C. 225 D. 256

Answer - Option D
Explanation - As,
[latex]{16}^{2}[/latex] - 256
[latex]{17}^{2}[/latex] - 289
[latex]{15}^{2}[/latex] - 225
[latex]{19}^{2}[/latex] - 361
Only, option D is the square of even number.
Thus 256 is different from others.
3. Select the odd word from the given alternatives.

A. Book B. Page C. Pen D. Diary

Answer - Option C
Explanation - Book, Page and Diary are all made up of Paper whereas Pen is not. Thus Pen is the odd word.
4. Select the odd number from the given alternatives.

A. 341 B. 342 C. 810 D. 405

Answer - Option A
Explanation - 3 + 4 + 1 = 8
3 + 4 + 2 = 9
8 + 1 + 0= 9
4 + 0 + 5 = 9
Hence, the correct option is A.
5. In the following question, select the odd letters from the given alternatives.

A. DV B. GR C. FT D. JP

Answer - Option B
Explanation - If we arrange alphabets in two rows as shown below, the letters are related as follows,
D opposite W, W-1 = V
G opposite T, T-1 = S
F opposite U, U-1 = T
J opposite Q, Q-1 = P

Thus GR are the odd letters.

1. In the following question, select the odd letter from the given alternatives.

A. TRQO B. WUTR C. JHFD D. LJIG

Answer - Option C
Explanation - Clearly, there is gap of 1 letter between first two letters followed by no gap in other two which is followed by gap of 1 letter.
T _ R Q _ O
W _ U T _ R
J _ H _ F _ D
L _ J I _ G
2. In the following question, select the odd word pair from the given alternatives.

A. Sad : Hopeful B. Happy : Ecstatic C. High : Giant D. Trail : Pathway

Answer - Option A
Explanation - In every option the pair of words are synonyms except option A,
Happy is a synonym of Ecstatic,
High is a synonym of Giant,
Trail is a synonym of Pathway,
But SAD is the opposite of HOPEFUL.
Hence, option A is the correct response.
3. In the following question, select the odd word from the given alternatives.

A. Sea B. Ocean C. Lake D. Marsh

Answer - Option D
Explanation - All are water bodies except ‘Marsh’, which is a wetland with grassy vegetation; usually is a transition zone between land and water.
Hence, the correct option is D.
4. In the following question, select the odd letter from the given alternatives.

A. XWV B. RQP C. HFE D. MLK

Answer - Option C
Explanation -
It is clear above that HFE is not following the pattern.
Thus, HFE is the odd one.
5. In the following question, select the odd word from the given alternatives.

A. Patna B. Lucknow C. Ahmedabad D. Gndhinagar

Answer - Option C
Explanation - All are capitals of the state except Ahmedabad.
Bihar - Patna
Gujrat - Gandhi nagar
Uttar pradesh - Lucknow
Hence, C is the required answer.