If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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?

What 5-letter word typed in all capital letters can be read the same upside down?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Can you solve the below rebus?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

What can you serve, but never eat?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?