What is at the end of a rainbow?

What always comes into a house through the keyhole?

Can you spot the hidden girl in the picture below?

How is the moon similar to a dollar?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

What is wrong in the below Picture?

It is always ahead of me yet I can never see it. What is it?

What does this simple rebus mean?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

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