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

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Find The Missing Number, 99% of People Fail To Solve This Table, Can You?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?