Can you find the key in the picture below?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

By using 'because' continuously three times, can you make an English statement ?

What has a bottom at the top?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Can you solve the below tricky visual equation?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Which tank will fill first?

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