Google Time Search

Google Calculator

title:Google Calculator Tips,Google Calculator Tricks

  To use Google’s built-in calculator function, simply enter the calculation you’d like done into the search box.

Performs calculations using Google Calculator without having to load a new page

In the google search :
Type in an equation: (100+4567*10-200=)
What is the square root of 267? (sqrt(267))

Google Search Tricks and Tips

title:Google Search Tricks and Tips,Special Searches Features With Google Search

Searching for a file

Suppose you want to search for pdf documents only. You can do this by attaching a filetype modifier to your query. A typical query can look like this

vpn filetype:pdf
Google can recognize most common file types.