What question can you never answer yes to?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

What time is it when an elephant sits on a fence?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Solve the equation in the image by looking at the pattern closely.

How is a fly different from a mosquito?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?