$2 + 2 = 4$

Would you like more details or have any questions?

Here are some questions you might find interesting:

1. What is the sum of 3 and 5?
2. How do you solve a quadratic equation?
3. Can you explain the Pythagorean theorem?
4. What is the derivative of $x^2$?
5. How do you find the area of a circle?

Tip: In mathematics, always double-check your work to avoid simple mistakes.