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

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

What goes up but never comes down?

It belongs to you, but other people use it more than you do. What is it?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

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

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

10+10 and 11+11 can give you the same answer.

Explain how?