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

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Can you count the number of matches in the picture below ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Why is it very easy to weigh a fish?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

I have branches, but no fruit, trunk or leaves. What am I?

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?