How is a fly different from a mosquito?

There are forty elephants and they have forty-fore heads. How can this be possible?

How do you go from 98 to 720 using just one letter?

Imagine you are in a room with no windows or doors. How will you get out?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

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.

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?