The Color Riddle

What is black when you buy it, red when you use it, and gray when you throw it away?

Answer: Charcoal

The Riddle of Knowledge

What grows the more it is shared?

Answer: Knowledge

The Puzzle of Existence

What can you catch but never throw?

Answer: A cold

The Linguistic Puzzle

I am not alive, but I grow; I don’t have lungs, but I need air; I don’t have a mouth, but water kills me. What am I?

Answer: Fire

The Paradoxical Container

What can be broken, but is never held?

Answer: A promise

The Weightless Mystery

What is always coming but never arrives?

Answer: Tomorrow

The Timeless Question

What has keys, but no locks; space, but no room; and you can enter, but not go in?

Answer: A keyboard

The Unstoppable Force

What moves faster: heat or cold?

Answer: Heat, because you can catch a cold

Solomon’s Riddle

What is so fragile that saying its name breaks it?

Answer: Silence

The Magic Word

What 8-letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Hint: Begin with words that have "ing" at the end.

Answer: Starting: "Starting", "Staring", "String", "Sting", "Sing", "Sin", "In", "I"