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 number should come in place of the question mark below?

What do you answer even though it never asks you questions?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

A pregnant woman is preparing to name her seventh child. Her children's names so far are Dominique, Regis, Michelle, Fawn, Sophie, and Lara. What will she name her next child -- Jessica, Katie, Abby or Tilly?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?