Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

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?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

Solve the mathematical equation in the picture below.

You need to arrange three 7 and mathematical symbols to form number 1?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Using Only Five 5's and any mathematical operator make sum as 37

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you find out the remainder when 3^300 is divided by 5?