ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Akinator - Akinator is an entertainment app that acts like a digital genie that can read your mind. The game will ask you a few questions about the character you have chosen, and it will attempt to guess the character from your provided answers.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.
LightShot - The fastest way to take a customizable screenshot.
A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.