What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Why 1729 is a magic number? Answer Logically.

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

I don't get anymore wetter, no matter how much rain falls on me.

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

I have an eye but still cannot see.

Who am I?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

What month of the year has 28 days?