What has one letter and starts with an E?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Can you find the missing piece of the Porsche?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Can you solve the below geography rebus by decoding the below rebus ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

What goes through cities and fields, but never moves?

What can you deduce from the following BrainBat?

CRY
LMKI

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?