What is the coolest letter in the alphabet?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

The centre of the third figure is empty. What digit should fit inside?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Forwards I am heavy, backward I am not. What am I?

Identify the 10 differences between the two given pictures.

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

How can you make a TV, a bed, a dog, and a car liquid?

How can you take 2 from 5 and leave 4?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?