Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Find the next number in the sequence

5 12 24 36 ?

When is the top of a mountain similar to a savings account?

A man dies of old age on his 25 birthday. How is this possible?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

Can you find out the number that should replace the question mark with a valid reason?

How could a baby fall out of a twenty-story building onto the ground and live?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?