The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

No matter how little or how much you use me, you change me every month. What am I?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

Find the next number in the series.
1 10 24 43 67 ?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

Can you Find and name the hidden bird in the picture below ?

There is a place where if I stand up straight, I will still be considered sideways.