Q: A woman gave birth to two sons who were born in the same hour of the same day of the same year, but they were not twins. How is this possible?
A: They were two of triplets.
Q: A woman gave birth to two sons who were born in the same hour of the same day of the same year, but they were not twins. How is this possible?
A: They were two of triplets.
non-twin – adj. not a twin