My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.

Answer: Candle

More Difficult Riddles with answers

More Difficult Riddles

My only timepiece is a wall clock. One day I forgot to wind it and it stopped. I went to visit a friend whos watch is always correct, stayed awhile, and then went home. There I made a simple calculation and set the clock right. How did I do this even though I had no watch on me to tell how long it took me to return from my friend's house?
My prefix is food. My suffix is rude. My infix comes in rounds. I keep you off the ground. What Am I?
My sides are firmly laced about, Yet nothing is within; You'll think my head is strange indeed, Being nothing else but skin.
My teeth are sharp, my back is straight, to cut things up it is my fate.
My tongue hangs out as I run over fields and streets all day. I get tied up every morning and untied at night.
Neither bought nor sold but more valuable than gold. It is built but not by hand. What is it?
Never alive but practically extinct. How we miss the letters pressing the ribbon of ink. What is it?
Not a burden for its weight and daily carried out, He who takes it wishes it had never come about
Oh, what a surprise! Oh, what a miracle! It sprouted without a seed, It stood without a trunk. What is it?
On my own, I am darkness, a black abyss. But, Life brings me light with its gentle kiss. I am quiet and cold, but warmth I can hold. Alongside beauties and wonders, sights to be told. My surface may be bare, this I'm aware. But, beautiful secrets I am eager to share. My mouth so large, I swallow you whole. To be in my belly is your goal. What may lie within can drive men to sin. Greed and desire, gluttony's kin. For some, I am fear. For others, hope. My perception shaped from life's scope. From the earth I have come, and forever will stay, even if parts of me crumble away. What am I?
Once they sailed the sea, now they surf the web
One day a little boy named John went over to his parents and said that he wanted to shoot people and blow them up. His parents were really proud of his career choice. What does John want to do?