Replace the question mark with the number below given a simple math problem.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Why did the Girl throw the butter out of the window?

Remove two matchsticks to make the below equation correct.

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

John was drowned by he was not wet. How?