How can you write nineteen in a manner that if we take out one, it becomes twenty?

What does this rebus means ?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

What will you call your mother's brother's brother-in-law?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Find the smallest sentence with all the English alphabet.

Can you place three balls such that the equation shown in the picture holds true?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?