It belongs to you, but other people use it more than you do. What is it?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

What word begins and ends with an E, but has only one letter?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

Can you count the number of triangles inside a triangle?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?