Memory is an important cognitive function. When it starts to fail us, we know that we are not at our best. Maybe we haven't slept enough, are distracted or are suffering a decline - a poor memory always indicates something. But it's a very hazy concept, and hard to measure objectively... unless you take a memory test! These 11 Memory Quizzes will allow you to check your memory objectively. We recommend to take it when you're at your best, after a good night's sleep, and some food in your stomach.