If you say my name, I will no longer exist. What am I?

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?

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

The Little ant seems to be always confused. Do you know why?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Find the missing number in the series below

13 -21 34 -55 ? -144

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?

I look at you, you look at me I raise my right, you raise your left. What am I?

Replace the question mark with the correct number in below Picture:

By what process could you make a 'Tea-Table' into food?