Can you spot the man between the coffee bean in the picture below ?

How many words can a pen with half refill write?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

How many triangles can you count in the figure given?

Prove that the below maths equation is true.

8 + 8 = 91

What's a single-digit number with no value?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

How can you take 2 from 5 and leave 4?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?