A: Concrete floors are very hard to crack! (UPSC Topper)

2 If it took eight men ten hours to build a wall, how long would it take four men to build it?

A: No time at all it is already built. (UPSC 23 Rank Opted for IFS)

3 If you had three apples and four oranges in one hand and four apples and three oranges in the other hand, what would you have?

A: Very large hands. (Good one) (UPSC 11 Rank Opted for IPS)

4 How can you lift an elephant with one hand?

A: It is not a problem, since you will never find an elephant with one hand. (UPSC Rank 14 Opted for IES)

5Q How can a man go eight days without sleep?

A No Probs, He sleeps at night. (UPSC IAS Rank 98)

6Q If you throw a red stone into the blue sea what it will become?

A: It will Wet or Sink as simple as that. (UPSC IAS Rank 2)

7 What looks like half apple?

A: The other half. (UPSC - IAS Topper)

8 What can you never eat for breakfast?

A: Dinner.

9 What happened when wheel was invented?

A: It caused a revolution.

10 Bay of Bengal is in which state?

A: Liquid (UPSC 33rd Rank)