Can you count the number of quadrilaterals in the picture below?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

What has a ring but no finger?

If 21x = 79x, what is the value of x?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?