Name a key which is hardest to turn.

Can you count the number of lines in the below picture?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

What four weights can be used to balance from 1 to 30 pounds?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

I have feet, but no legs. Which animal Am I?

I have teeth but i don't bite. Who Am I ?