What's the best place to go shopping in the ocean?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

If two's company, and three's a crowd, then whats four and five ?

Which is heavier: a ton of bricks or a ton of feathers?

In the image below, can you find the value of an angle(y)

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

What can you deduce from the following BrainBat?

CRY
LMKI

What always comes into a house through the keyhole?