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?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

Solve below rebus puzzle?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

What has 88 keys?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Which is the rope you never skip with?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

It belongs to you, but other people use it more than you do. What is it?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.