A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Can you replace the question mark with the correct number?

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Do you know who was buried in John's tomb?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

When monkey rotate the gear, which mark will be hit 1 or 2 ?