What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which digit occurred maximum times between the number 1 and 1000?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?