How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

You need to move three matchsticks to form three squares. Can you do it?

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

Can you make four (4) nines (9) equal 100?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

What does this mathematical rebus means ?