Keyboard words are not in alphabetical order, Why?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

When can we add 2 to 11 and get 1 as the correct answer?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Find the Odd One Out?
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There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?