Revolutionize your mind with 65 brain teasers

A good mathematician always sets himself challenges and intelligent games. These 65 enigmas or mental traps serve as a gymnastic board for the neurons. They all help to deduce logically and think with the imagination. They can be solved as a personal challenge, or look for collaborators and play with other people to see who can solve them first. All the solutions are at the end of each exercise. It is recommended that you consult them, even if you have found the correct answer, I invite you to think and play thinking.Nobody knows what he/she is capable of doing, until he/she tries to do it.