What is the rarest birthday?
February 29 (leap day).
Which celebrity famously had two birthday celebrations every year (an “official” and a “real” one)?
Queen Elizabeth II.
What is a golden birthday?
When your age matches the date of your birth (for example, turning 25 on the 25th).
which celebrity shares your birthday? google "who was born on .... "
?
Which two months have the most birthdays worldwide?
September and October.
What is the most popular birthday gift in the U.S. according to surveys?
Gift cards.