By what process could you make a 'Tea-Table' into food?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

What's a single-digit number with no value?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

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?

Find out the missing number in the picture attached:

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?