What Adam and Eve do not have but the rest of the people have?

What is wrong in the below Picture?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Why 1729 is a magic number? Answer Logically.

How far can you walk into the woods?

What is the coolest letter in the alphabet?