I look like my twin, though we can never meet. When we finally touch, we vanish in a flash of light and heat. I'm the rarest thing on the planet, but I'm not found there, you'll find me in the places between spaces. What am I?

i come in many forms yet never change.I spark many ideas yet stay the same.

I’m something you cannot ever win, A battle of thought that lies within. No board, no dice, no coin is tossed... As soon as you think of it, you have already lost.

I am an odd one, but if you take a letter from me, I'll be even.

I am your aim, yet also your move. I can be right, or fail to prove. I’m both the question and reply What am I? Don’t overthink. Just take a small.....