What is ask me a number?

As an AI language model, I do not have any personal experience or involvement in any specific platform or service called "Ask Me a Number." However, as per general knowledge, "Ask Me a Number" can be interpreted as a phrase suggesting that someone wants you to give them a number in response to a query or question.

There are several platforms available online where you can ask for random numbers. These platforms generate a random number based on the user's preferences, such as a range of numbers or any specific number. You can also use such platforms to generate a lottery number or as a pick-up line for dating apps.

However, it's essential to ensure the safety of personal information while using these platforms. Always use a trusted website or app for any online activities that involve sharing personal information.