What building has the most stories?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

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

I’m tall when I’m young, and I’m short when I’m old. What am I?

Which is the rope you never skip with?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Can you make four (4) nines (9) equal 100?