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?

Different lights make me strange by changing me into different sizes. What am I?

I can write cow in 13 letters.

Can You?

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

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

How many words can a pen with half refill write?

I am quite hot but become too cold if you remove the first two letters. What am I?

Which is faster, Heat or Cold ? Explain.

When it's bad luck to meet a black cat?

There are forty elephants and they have forty-fore heads. How can this be possible?