10+10 and 11+11 can give you the same answer.

Explain how?

Out of four images which one is the odd one out?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

What is the next shape from answers A, B, C, and D figure?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

What happened when the wheel was invented?