I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

What brings you down but never up?

Before Mount Everest was discovered, what was the highest mountain in the world?

Using Only Five 5's and any mathematical operator make sum as 37

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Can you Find and name the hidden bird in the picture below ?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Solve the equation in the image by looking at the pattern closely.

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?