The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

What question can you never answer yes to?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

They are three errirs in this question. Can you find them?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

Which is the rope you never skip with?

Prove that twice of ten is the same as twice of eleven.