What is both possible and impossible at the same time?

Spot the cat in the picture below

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Solve the riddle below:

If a Chicken says, 'All chickens are liars" is the chicken telling the truth?

They are three errirs in this question. Can you find them?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What have one eye but still cannot see?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?