There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

What brings you down but never up?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

You can see it everyday, But cannot touch it at will. What is it?