There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

What occurs twice in a week, once in a year but never in a day?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

In which direction should the missing arrow point?

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

The centre of the third figure is empty. What digit should fit inside?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

What can you see in the middle of March and April that you can never see in any other month?