Can you count the number of triangles in the picture below?

Count the number of triangles in the picture below:

You need to move three matchsticks to form three squares. Can you do it?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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

Can you solve the below tricky visual equation?

Can you find the hidden animal in the picture below?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?