Hard riddles

Can you arrange 9 numerals - 1, 2, 3, 4, 5, 6, 7, 8 and 9 - (using each numeral just once) above and below a division line, to create a fraction equaling to 1/3 (one third)?

Answer

5832/17496 = 1/3

What grows in winter, dies in summer, and grows roots upward?

Answer

Icicle.

After you go through a fall I will take over.
All life will stall, or at least grow slower.

What am I?

Answer

Winter.

There is a soccer game. And there are the same amount of people on each team. In the end the score is 5 to 0. But no boys scored any goals.
How is this possible?

Answer

The girls scored the goals. I never told you there weren't any girls.

A man is late for an appointment and, in his haste, takes a corner so fast that only two wheel were on the pavement. A police man is standing on the corner, but he did not give him a ticket.
Why?

Answer

He was on a motorcycle.

There are four people in an adventure race that need to get across a lake. They have a small canoe. The rules say that only the slowest person in the canoe can paddle, only one or two can be in the canoe at a time, and they must all cross in the canoe. From practice, they know that:

Ann can paddle across in 1 minute.

Bill can paddle across in 2 minutes.

Sue can paddle across in 5 minutes.

Mike can paddle across in 10 minutes.

How do they get everyone across the river in the fastest time without breaking the rules?

Answer

There are five crossings, counting both directions. Bill paddles across with Ann, and returns alone. Then Mike paddles across with Sue, and Ann paddles back. Bill then paddles back with Ann. The total time is 17 minutes, which is the shortest possible, although Ann could have done the second crossing, and Bill from the fourth, and the result would be the same. The crucial point is that Sue and Mike had to make the third crossing.