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

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

How can you make a TV, a bed, a dog, and a car liquid?

Which is faster, Heat or Cold ? Explain.

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

What is the below Rebus indicate?

What time is it when an elephant sits on a fence?