Which key will you choose? The answer will tell you what others think of you when they first meet you
Find the letter "I" amongst all the numbers in the image and solve this brain-teaser
What is the missing number? Solve this math puzzle and prove you're a genius
How do you hold your pen while writing? The position may reveal details about your personality
How many triangles are there inside this square? Don't be fooled, there are more than you think
Solve this puzzle in just 15 seconds: challenge yourself and solve this math test
Find the letter A amongst all the numbers and solve this visual quiz in just 15 seconds
Is there only an elephant in this picture? Test your powers of observation with this optical illusion
Find the letter F in just 10 seconds and solve this visual puzzle
Find the second woman in 5 seconds: whoever manages to solve this puzzle can be considered an expert observer
Visual test: can you spot the intruder in this image in just 15 seconds?
Find the number 1102 in just 10 seconds and solve the observation test
In the image, there is one smiley which is different from all the others: where is it?
How many 7s are there in this image? Only the most attentive will get the right answer
How many squares are there in the figure? Only the brightest will get the correct answer
Find the number 9179 in just 10 seconds and solve this visual quiz - will you succeed?
Are you able to form 4 triangles by moving only 2 matches?
Find the number 23 hidden in the image: those with eagle eyes will find it in under 15 seconds
Find the word "GOD" hidden in this image
Visual test: find the raccoon hidden in this picture in just 20 seconds
Pencil brain-teaser: Move only two pencils to get the highest number possible
Matchstick puzzle: move a single match to make the mathematical operation true
Test yourself with this visual quiz: find the hidden number "72" among all the "77s" in just 10 seconds
Test yourself with this challenging puzzle: move a single matchstick to get a perfect square