2. SeatGuru
4. iRuler
7. WhatTheFont
Website and app that figures out what font something is when you upload a picture. Try it here.
8. Old Version
9. Mathway
Solves any kind of math problem, from basic math to chemical equations. Not recommended for cheating at school, because actually knowing math is very important for times when you don’t have internet access to get to this site. Plus, you don't get the steps to solving the equation unless you upgrade your account. Solve for y here.