John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What 5-letter word typed in all capital letters can be read the same upside down?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What does an Island and the letter T have in common?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

What does this mean?

CCCCCCC

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

If an electric train is travelling south, then which way is the smoke going?

What word begins and ends with an E, but has only one letter?