I started a job at a large firm, the exact same day and in my exact department a girl of the same age started too.
We had the same (not common) surname, same middle names, born on the same year about a week apart, our mothers had the same first and middle names and weirdest of all, our partners at the time had the same surname which again was not common!
We stopped asking each other questions in the end as it was too bizarre!
Anyone else have any examples of coincidences that are just too strange to believe?!