The puzzle that defies logic. Try to solve this mathematical challenge as quickly as possible.

Mathematics has a fascinating power to divide minds: for some, it represents pure pleasure, for others, a source of anxiety. But when it comes to math puzzles, everyone seems to want to try their luck. Recently, a puzzle has been making the rounds on social media, intriguing thousands of Internet users with its provocative warning: “99% failure”.

The puzzle that defies logic

Here are the equations at the heart of the challenge:

1 + 3 = 4
2 + 4 = 10
3 + 5 = 18
4 + 6 = ?