Good Riddles

Question: What is at the begining of the end, the start of eternity, at the end of time and space, was in the middle of yesterday but is nowhere in tomorrow?

Question: I'm made up of 12 completely different letters but you can type me with just 1, what am I?

Question: You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work.

What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?

Question: Poke your fingers in my eyes and I will open wide my jaws. Linen cloth, quills, or paper, my greedy lust devours them all.

What am I?

Question: How can you make the following true by adding a single line: .9 = 1.

Note: ≠ is not the answer.