How can you write nineteen in a manner that if we take out one, it becomes twenty?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What does this rebus means ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

How many triangles are there on the puzzle below?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

When it is alive we sing, when it is dead we clap our hands. What is it?

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?