What question can you never answer yes to?

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?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Find the last number in the series below:

voN luJ yaM raM ---

What does it mean?

Where do you go to learn how to make ice cream?

Different lights make me strange by changing me into different sizes. What am I?

A bomb exploded in a room full of married couples and no one died. How?

Which country gets ill every time?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?