Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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

Can you move 2 matchsticks to form four equal sized squares.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I have an eye but still cannot see.

Who am I?