Can you spot the hidden girl in the picture below?

What is black when you buy it, red when you use it, and gray when you throw it away?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

The more it dries, the wetter it becomes. Can you tell what it is?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Count the number of triangles in the picture below:

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.