Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Count the number of triangles in the given picture.

81 x 9 = 801. What must you do to make the this equation true?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Different lights make me strange by changing me into different sizes. What am I?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?