10+10 and 11+11 can give you the same answer.

Explain how?

What brings you down but never up?

What is common among 11, 69, and 88?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

What four weights can be used to balance from 1 to 30 pounds?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Which is the rope you never skip with?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
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