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

What does this rebus means ?

Take away the whole and some still remain. What is it?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

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

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?