How could a baby fall out of a twenty-story building onto the ground and live?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Find out the missing number in the picture attached:

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

Find the missing number in the sequence below:

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Which is the correct shadow of the bird?

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?