Can you find out the total number of triangles in the given figure?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

O_er_t_o_

Complete the missing letters of the given word.

2, 3, 5, 9, 17, _ What is the next number in the sequence?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

What is the fastest way to double your money?