Find the hidden tiger in the given optical illusion ?

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

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

A farmer and his neighbour once went to Emperor Akbar"s court with a complaint. "Your Majesty, I bought a well from him," said the farmer pointing to his neighbour, "and now he wants me to pay for the water."
"That"s right, your Majesty," said the neighbour. "I sold him the well but not the water!"?
The Emperor asked Birbal to settle the dispute. How did Birbal solve the dispute?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

In the picture given below, can you find out which digit will take place of the question mark?

If an electric train is travelling south, then which way is the smoke going?