Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

What is more useful when it is broken?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

What runs around the whole yard without moving?

Count the Triangle in the figure given below:

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

What number divided by 4 is the same as that number minus 4?