How can you write nineteen in a manner that if we take out one, it becomes twenty?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Can you find the missing piece of the Porsche?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Can you find the mistake in the below statement?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

I make two people out of one. What am I?