Keyboard words are not in alphabetical order, Why?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Why do Chinese men eat more rice than Japanese men do ?

Why are all black people so quick ?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59