Ask AI: What's red blue white and yellow and if you throw it against the wall the neighbours phone rings?

This sounds like a riddle or a joke. The description of something being "red, blue, white, and yellow" and causing the neighbor's phone to ring if thrown against the wall doesn't seem to refer to any real-world object. It's likely a play on expectations or a humorous anecdote. Often, riddles like this don't have straightforward answers, as they rely on a punchline or clever twist. Without more context, it's hard to say exactly what the answer is. Would you like some help trying to solve it or explore possibilities?

This seems like a riddle or a joke. The answer could be that there is no object that has these specific colors and would cause the neighbor's phone to ring when thrown against the wall. The question might be intended to provoke a humorous response or to confuse the listener.

A phone book.