What do you call a fish without an eye?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Find the Goldfish below the given Image.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

What is always in front of you but can’t be seen?

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?