Google Calculator

Google acts as a calculator if you enter a sum.

Example

Googling "11 * 12 i [9:28:25.641]: [By.name: q] - changed value to '11 * 12'
[9:28:26.708]: [By.name: q] - changed value
" displays "132 i [9:28:26.825]: result is '132'
".

(Hover over the i icons to see the logging.)