In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

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

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

When 99 is considered higher than 100?

What goes up but never comes down?

How is a fly different from a mosquito?

You can see three almost identical images below. Can you spot the odd one out from them?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

What goes through cities and fields, but never moves?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain