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

Before Mount Everest was discovered, what was the highest mountain in the world?

How can you take 2 from 5 and leave 4?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

There is a place where if I stand up straight, I will still be considered sideways.

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

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