Why Wine Glass Stem is so long?

There was a strange boy who was born before his father. How can this be possible?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

What can you hold in your right hand, but never in your left hand?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?