IQ Test Script – is a PHP script for determining of visitors’ IQ. It functions as a fully independent page, which can be installed easily and let make money for you. This script is connected to PayPal payment gateway and every user must pay after the test completing a fee chosen by you in a chosen currency (can be set easily). After payment, the user is redirected directly to his/her result and all wrong answers are displayed to him/her. All text phrases are stored in one text file and thus it is possible to translate the script into any language by means of a text editor. The script is really undemanding for server conditions. It requires ca 20 Mb of space and is completely maintenance-free.