7 Riddles That Will Test Your Brain Power

Sure, here are seven riddles to test your brain power:

I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?

The more you take, the more you leave behind. What am I?

I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Forward I am heavy, but backward I am not. What am I?

I am always hungry, I must always be fed. The finger I touch, will soon turn red. What am I?

What comes once in a minute, twice in a moment, but never in a thousand years?

The more you look at me, the more I can weigh. What am I?

Feel free to take your time and respond when you're ready!