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

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.

Can you name some countries which do not have the alphabet 'A' in them?

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

O T T F F S S ?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

What always comes into a house through the keyhole?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

What occurs twice in a week, once in a year but never in a day?