Use Google spell checker. Entering a word into Google is a quick way to see if you have the right spelling. If it’s incorrect, Google will suggest the correct spelling instead.
Use Google as a calculator. Google has a built-in calculator — try entering a calculation like 110 * (654/8 + 3) or 5*9+(sqrt 10)^3=. Google has a calculator information sheet that is very helpful
Find out what time it is anywhere in the world. Search for “time” and then the name of the city. For example, try: [time Salt Lake City]
Get quick currency conversions. Google can also do currency conversion. For example: [100 pounds in dollars]
Track flight status. Enter the airline and flight number into the Google search box and get back the arrival and departure times right inside Google's search results. Try: [Delta flight 562]
Area code lookup. Need to know where a phone number is located? Google will let you know where it is, and show you a map of the area, too. For example: [area code 415]
Movie lookup. Find reviews and showtimes. Try: [movies Hunger Games]
Stocks. Look up stock information by entering just the ticker symbol. Try: [goog]
Unit conversion: Easily convert between different units of measurement. Try [67 inches in cm]
Public information. To see trends for population and unemployment rates of U.S. states and counties, type "population" or "unemployment rate" followed by a state or county. You can click through to a page that lets you compare different locations. Try: [population Los Angeles]
Find a definition. If you want to get a definition of a word or an idea, you can use the “define:” operator to return definitions from various dictionaries. For example: [define:parallelogram]. You can also use "what is" - try: [what is ebola].
There are many more Google tricks to explore.