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

How Come ??

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

How can you make a TV, a bed, a dog, and a car liquid?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

What English word has three consecutive double letters?

Can you name an animal whose killing cannot be performed without spilling your own blood?

I am sure no one can have two things for dinner. what are they?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.