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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What is the word or phrase?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

If eleven plus two equals one, what does nine plus five equal?

The more of this there is, the less you see. What is it?

What breaks yet never falls, and what falls yet never breaks?