Explanation

Step 1: First two letters

• AB

• CD

Each pair moves two letters forward in the alphabet:

• A → C → E

• B → D → F

So the next pair is EF.

Step 2: Last letter

• Z

• Y

The last letter moves one step backward in the alphabet:

• Z → Y → X

Final term: EFX

Last updated 05-03-2026

Explanation

Since A is older than B, B is older than C, and C is older than D, the order is: A > B > C > D

So, A is the oldest.

Last updated 05-03-2026

Explanation

A is the son of B (A is male).

C is a child of B (C is sibling to A).

C is not A's son (C is not a male child, therefore C is the daughter of B).

Therefore, C is the sister of A. 

Question updated 03-March-2026

Explanation

Explanation

It is possible because B is the man's daughter.

While the man is the father, the child (B) is female, so she is his daughter, not his son.

The riddle plays on the assumption that "child" automatically means "son," when it could be a daughter. 

Question updated 03-March-2026