Blood relations – translating a compound statement: Pointing towards a gentleman, Deepak said, "His only brother is the father of my daughter's father." How is the gentleman related to Deepak?

Introduction / Context:
This classic pattern equates a referred person's sibling to a known relative of the speaker, and then asks for the relation of the original person to the speaker.

Given Data / Assumptions:

• Deepak is male (so "my daughter's father" = Deepak himself).
• "His only brother" = the gentleman’s sole brother.
• "Father of my daughter's father" = father of Deepak ⇒ Deepak's father.

Concept / Approach:
If the gentleman's only brother is Deepak's father, then the gentleman is a brother of Deepak's father. A father’s brother is an uncle.

Step-by-Step Solution:

Verification / Alternative check:
Construct a small tree and label: Gentleman (G), Brother(G)=Deepak's father (F). Deepak is child of F. Relation G→Deepak = paternal uncle. Consistent.

Why Other Options Are Wrong:
Father/Grandfather mismatch generations; Brother-in-law requires spousal linkage, not present here; Cousin is horizontal but wrong branch.

Common Pitfalls:
Misreading "my daughter's father" as someone other than the male speaker.

Final Answer:
Uncle