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

Our product and our sum always give the same answer. Who are we?

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)

What is next number in the pattern below:

131 517 192 123 ?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Find the value of "?" in the ball picture Riddle below:

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

What is the largest number you can write with just 3 digits?

I am an odd number. Take away a letter and I become even. What number am I?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.