Why is the Hole below a Lock?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Which is heavier: a ton of bricks or a ton of feathers?

What does this simple rebus mean?

What is the end of everything?

What has hands, but can’t clap?

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

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?