Find an English word that uses all of the following letters: PNLLEEEESSSSS

What is black when bought, red when used, and gray when you throw it away?

What would you father’s only sister’s sister-in-law be to you?

We see it once in a year, twice in a week, and never in a day. What is it?

What unusual property do the words FLOUR, TERN, and THIRSTY have in common?

Which word, if pronounced right, is wrong, but if pronounced wrong is right?

What is it that when you take away the whole, you still have some left over?

I have a brother. However much we run, we do not reach each other. What am I?

I have skin, more eyes than one. I can be very nice when I am done. What am I?

What comes once in a minute, twice in a moment, but never in a thousand years?

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

A man is twenty years old but has only had five birthdays. How is that possible?

Before Mount Everest was discovered, what was the highest mountain in the world?

Scientists are trying to figure out what is between Heaven and Earth. What is it?

You throw away the outside, eat the inside, and throw away the inside. What am I?