You need to arrange three 7 and mathematical symbols to form number 1?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

What occurs twice in a week, once in a year but never in a day?

What building has the most stories?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?