As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

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?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

What jumps when it walks and sits when it stands?

I am white when I am dirty, and black when I am clean. What am I?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

I taste better than I can smell. Who am I?