A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What question can you never answer yes to?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

The centre of the third figure is empty. What digit should fit inside?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?