As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Can you find the hidden animal in the picture below?

Can you place three balls such that the equation shown in the picture holds true?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Before Mount Everest was discovered, what was the highest mountain in the world?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?