A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

How do you go from 98 to 720 using just one letter?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

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 ?

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

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?