What is the longest word in the dictionary?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?