Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Which tank will fill first?

How is the moon similar to a dollar?

Why do we preferably have round manhole covers and not square ones?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?