Which is faster, Heat or Cold ? Explain.

Using exactly three matchsticks, can you divide the area into two equal parts?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

You need to remove four matchsticks from the picture below and still need to maintain the following as in the original image.
1. 1st row contains 12 matchsticks
2. 2nd row contains 12 matchsticks
3. 1st column contains 12 matchsticks
4. 2nd column contains 12 matchsticks

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

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?

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