TASK DEFINITION: You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
PROBLEM: Depends on your teeth.  I used Crest Whitestrips for a time, and they worked really well (I definitely noticed a difference in the whiteness of my teeth).  However, they irritated my gums to the point where my dentist told me to stop using them and they made my teeth super sensitive to cold and hot (i.e. eating ice cream or drinking tea was painful).  I've never done the laser whitening/Brite Smile, but I've seen those treatments work wonders for folks who have (they are not cheap though).  I would advise trying the strips (making sure to abide by the time guidelines) - you will like the effects of them (they do really work) and if they don't bother your teeth/gums, you should be able to continue use.

SOLUTION: 2

PROBLEM: Wikipedia has a list of inventors and invention.  Also, about.com has a list of famous inventors.

SOLUTION: 3

PROBLEM: Userplane has an audio/video recorder that will do that - you can check it out at http://www.userplane.com/apps/videoRecorder.cfm

SOLUTION:
4

