Joke

Two identical twins were separated at birth; one went to Mexico
where he was named "Juan" and the other went to Saudi Arabia
where he was named "Amahl". 15 years later the biological family
decided on a reunion, so they sent airline tickets to both boys.
Juan arrived first, but Amahl never showed. The family was really
disappointed until one of the uncles pointed out that they were
after all identical twins, so if you've seen Juan, you've seen Amahl.