When we see 2 but call 10?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?

What does this mean?

CCCCCCC

How can a man go eight days without sleep?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

Bay of Bengal is in which state?

I know a nine-letter word having only one vowel.
Do you ?