If 21x = 79x, what is the value of x?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

In the given picture, in how many ways can you read the word "Tiger"?

What four weights can be used to balance from 1 to 30 pounds?

Why do you find that most of the buildings are deprived of the 13th floor?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

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?

How can you leave a room with two legs and return with six legs?