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

What number should come in place of the question mark below?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

Move three sticks of the spiral below to form a square.

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

What occurs twice in a week, once in a year but never in a day?

There is a place where if I stand up straight, I will still be considered sideways.

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

Spot what is wrong here in below Picture?