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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

The more you take me, the more you leave me behind.
Who Am I?

How many times can you subtract the number 5 from 25?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

If an electric train is travelling south, then which way is the smoke going?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?