What's the best place to go shopping in the ocean?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

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

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

Why Wine Glass Stem is so long?

What is the end of everything?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

If two's company, and three's a crowd, then whats four and five ?