A EDRGLF
B ECPNFH
C EDRFGN
D FCPOGH
Explanation: Each letter shifted by plus 2. CANDLE becomes EDRGLF.
A Ram
B Shyam
C Mohan
D Hari
Explanation: Mohan is taller than Ram who is taller than Shyam. Mohan is tallest.
Explanation: Each number doubles. 24 times 2 equals 48.
Explanation: Each group skips one letter. A-C-E, F-H-J, K-M-O, next is P-R-T.
A Uncle
B Father
C Brother
D Grandfather
Explanation: A is mother of B and C. E is B\'s daughter. C is uncle of E.
Explanation: All except 100 are perfect cubes. 100 is not a perfect cube.
A Mother
B Sister
C Aunt
D Grandmother
Explanation: My paternal grandmother\'s only son is my father. His wife is my mother.
Explanation: Each term times 2 plus 1. 47 times 2 plus 1 equals 95.
A Father
B Mother
C Brother or Sister
D Son
Explanation: B and C are both children of A and D, so they are siblings.
A 712348
B 712358
C 612348
D 712438
Explanation: Using same letter-to-digit mapping: R equals 7, giving 712348.
Explanation: Consecutive prime numbers. After 23 comes 29.
A Iron
B Copper
C Gold
D Lead
Explanation: Copper, Gold, Silver, and Lead are non-ferrous. Iron is ferrous.
Explanation: Gap of plus 3 each time. J plus 3 equals M.
A 3 km
B 4 km
C 5 km
D 7 km
Explanation: Pythagoras: square root of 9 plus 16 equals 5 km.
A NPPQ
B NPPO
C NOOQ
D MPPO
Explanation: Each letter shifted by plus 1. MOON becomes NPPQ.
Explanation: After interchange A is 11th from front. Total equals 11 plus 9 minus 1 equals 19.
Explanation: Triangular numbers with differences 2, 3, 4, 5, 6. Next is 15 plus 6 equals 21.
A UWFKC
B UWFKD
C VWGKE
D UWFKE
Explanation: Each letter shifted by plus 3. TREND becomes UWFKD.
Explanation: All except 21 are even numbers.
A 0 degrees
B 7.5 degrees
C 15 degrees
D 22.5 degrees
Explanation: At 3:15 the minute hand is at 90 degrees, hour hand at 97.5 degrees. Difference is 7.5 degrees.