Which number should replace the question mark?

Find the number of squares in the below picture

What can you see in the middle of March and April that you can never see in any other month?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

What goes up but never comes down?

Solve below rebus puzzle?

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?

what does this picture(rebus) riddle means ?

Which is the correct shadow of the bird?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?