What is the best free online IQ test?

iq test free Pet IQ Quiz: Is your pet an Einstein? Is your pet a secret Einstein? We've put together this fun IQ test especially for pets so you can finally find out for

Before you start, make sure that you have about an hour of free time during which nobody will disturb you Carefully read every question and select your answer  iqlyl The Cognitive Reflection Test is dubbed the world's shortest IQ test because it consists of just three questions It assesses your ability