Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

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

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

What does it mean?

What has many keys but can’t open a single lock?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

How is a fly different from a mosquito?

81 x 9 = 801. What must you do to make the this equation true?

Make a sentence consisting of three words that have the whole alphabet.