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

how come the second man dies?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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

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

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.