What happened when the wheel was invented?

How far can you walk into the woods?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Move three sticks of the spiral below to form a square.

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

What number do you get when you multiply all of the numbers on a telephone's number pad?

I know a nine-letter word having only one vowel.
Do you ?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What's the best place to go shopping in the ocean?