Math Question

Q1
1,11,21,1211,111231,31121311,132112111321,?

What is the question mark?

Q2
In the fraction 9/31, an addition of x in the numerator and a subtraction of x in the denominator will cause fraction to become 3/5. Find the value of x.

Q3
In a Math test, the average score for the class is 91.2. There are 21 girls in the class, with an average of 92. The average score for the boys is 90.5. How many boys are there in this class?

If any of you can answer 1 of this questions in 3 minutes, you will be considered pro as i took some time to answer this especially the 1st 1. Samuel took lesser than a minute! Sean don't know how to do. :P

Poem on Neighbour

My neighbours are two old people,
And I think that they are very lonely.
I seldom see them go out to play,
But they always go out to eat their breakfast.
Once I saw them eating carrot cake,
Another time eating "guo tiao".
Their children visit them about once a month,
But sometimes twice per month.
I doubt they have a facebook account,
I doubt they even have a computer.
But don't worry,
They are not that lonely.
They have a pet dog at home,
Which I rarely hear it bark.
They like to go to Bukit Timah Hill
And do excerise over there.
I saw the old man driving a motorbike,
But once I saw him driving a car.
Although they are so lonely,
They are very kind hearted.
If they just came back from exercise,
They will let us take the lift up first
As they say they were very smelly.
And during New Year,
He will wish us good luck
And give us a small little calendar.
I am going to finish this poem,
But I am going to wish them good luck for the rest of thier life,
Win every majong game they play,
Win 4D, Toto and "Tua Chye"
And never "tio sum man" again.

Poem on neighbour