Here is its answer:

"

The most difficult question in the world is a matter of perspective and can vary depending on the context and the person answering the question. It could be a question that is difficult to answer from a scientific, philosophical, or personal standpoint.

Some examples of difficult questions that have been asked throughout history may include:

• "What is the meaning of life?"
• "What is the nature of consciousness?"
• "How do we achieve true happiness?"
• "How can we solve the problem of poverty and inequality?"
• "What is the solution to the world's energy crisis?"

These are some examples of questions that are considered difficult to answer as they require deep understanding of a specific field and they may also have different perspectives and opinions.

In general, any question that requires a complex or nuanced answer and that touches on the fundamental nature of reality or human existence can be considered difficult.

"