Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

If a wheel has 54 spokes, how many spaces are there between the spokes?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

The more you take me, the more you leave me behind.
Who Am I?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?