How can you leave a room with two legs and return with six legs?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

I have an eye but still cannot see.

Who am I?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

You need to move three matchsticks to form three squares. Can you do it?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

Using Only Five 5's and any mathematical operator make sum as 37

Count the number of triangles in the picture below:

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Can you count the number of matches in the picture below ?