Yes they do: Invocabit, Reminiscere, Oculi, Laetare, Judica, Palmarum...that's what they've been for over 1300 years. The modern Church has almost lost her way, but not quite. Yay Papa Benedict XVI
No. Sundays are not included in Lent!
Ordinary time are all the Sundays in the liturgical calendar when the Church is not observing a major season such as Advent, Christmas, Lent or Easter. In other words, they are 'ordinary' Sundays.
Yes.
It is 40 weekdays before Easter. Sundays are not counted as days of Lent.
Lent is the 40 days before Easter and Advent is the 4 Sundays before Christmas.
Ash Wednesday precedes Lent in the liturgical calendar. Ash Wednesday marks the beginning of the Lenten season, which is a period of fasting, repentance, and reflection for Christians leading up to Easter.
Lent is 40 days long, excluding Sundays. If you count backwards from Easter, skipping over Sundays, you'll find that the 40th day is a Wednesday. Thus, Lent starts on a Wednesday.
Lent
The Glorious Mysteries are prayed on a Wednesdays and most Sundays. The exception are the Sundays of Lent, on which the Sorrowful Mysteries are prayed and the Sundays of Advent, on which the Joyful Mysteries are prayed.
Sundays are not included when counting the amount of days in Lent.
Lent is a season of forty days, not counting Sundays, which begins on Ash Wednesday and ends on Holy Saturday. Sundays in Lent are not counted in the forty days because each Sunday represents a "mini-Easter" and the reverent spirit of Lent is tempered with joyful anticipation of the Resurrection.
If your birthday is not in Lent, then of course you can. If it is in Lent, you probably should still stay off what you have given up if you are serious about honouring Lent.