Lent last for 40 days before Easter
Yes, Lent ends on Holy Thursday and the Easter Triduum begins.
No. Lent is over at Easter. It is a forty day season from Ash Wednesday to Easter Sunday.
Advent begins on the 4th Sunday before Christmas. Lent is the 40 days before Easter.
Shrove Tuesday is the day right before the season of Lent begins. In some major countries it is also called pancake day, it is to begin the time when Jesus died for us until Easter Sunday.
No lent does not finish on Easter Sunday, it ends on Holy Sayurday.
Palm Sunday falls the Sunday before Easter. Everyone is given palm leaves as a symbol of Jesus's ride into Jerusalem. On Ash Wednesday (or right before it, not sure about this part), the palm leaves from the previous year are burned, and that is what is used to begin the season of Lent.
The 40 days before Easter are called Lent.
Easter Sunday
By working backward from Easter Sunday - the forty days previous to that are "Lent". Easter Sunday is always the first Sunday after the first full moon after the Vernal Equinox.
The day before Easter is simply Easter Saturday. The day before that is Good Friday.
Lent changes every year because the dates for Easter change. Easter Sunday is the first Sunday after the first full moo after the March equinox. So whenever Easter is will determine when Lent is. As Easter changes its date every year, so does Lent.
Lent is a period of time, not a day. It is fourty days celebrated before Easter, from Ash Wednesday through to the Easter Tridium; Maundy Thursday, Good Friday and Easter Sunday.