I can hold great knowledge, yet I weigh nothing at all. You can find me everywhere. What am I?

Category: Brain · Difficulty: hard

Hint: Consider the flow of information in modern communication.

Answer

A network of ideas

Explanation

A network of ideas exists in our minds and connections without physical weight.

This is a hard brain riddle — a tricky one that takes a little thought. The answer is A network of ideas.

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