Which wheel of car does not rotate when you turn your car right?
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
The following alphametic has only one solution. Can you find it? ENLIST + SILENT + LISTEN = ANAGRAM PS: You may start the number from 0.
What month of the year has 28 days?
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?
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
What does an Island and the letter T have in common?
John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller. I called their home number and one of them picked up. I asked. 'Does John lie?' The person replied with a yes. Whom did I talk with, John or Jacob?
Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?
What number do you get when you multiply all of the numbers on a telephone's number pad?
An express train takes 3 seconds to enter the tunnel which is 1 km long. If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.
