What happened when the wheel was invented?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

John was drowned by he was not wet. How?

Prove that twice of ten is the same as twice of eleven.

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

How can a man go eight days without sleep?

Which is faster, Heat or Cold ? Explain.

Why is the Hole below a Lock?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?