If you haven’t been seriously challenged in a while, you’ve come to the right place.

In today’s high IQ test, we will put your eyes to the test and see if you have what it takes to make it to the top of the list and be branded a puzzle master.

Here are some ground rules before we get started. You have to find all of the hidden letters A in the picture below to pass the test. To make matters worse, you only have 30 seconds at your disposal.

Once you’re ready, turn on the timer and get to counting!

How many As did you find? If you saw 2, you were on the right track but not just there yet. There are in fact 3 letters A in the picture and only the most eagle-eyed viewers can see them all in such a short time.

If you need more practice, check out our other posts for similar challenges that focus on your observation skills. And if you passed our test, congratulations!

With As out of the way, it’s time to test your logical thinking. Below are three hard riddles for adults. If you manage to solve them all without help, then you deserve to be called a puzzle master.

Give it your best shot!

RIDDLE: “I have cities but no houses, forests but no trees, water but no fish. What am I?”

ANSWER: A map!

RIDDLE: “There was a plane crash in which every single person was killed. Yet there were 12 survivors. How is this possible?”

ANSWER: The survivors were married. Only single people died in the crash!

RIDDLE: “Two fathers and two sons are in a car, yet there are only three people in the car. How is this possible?”

ANSWER: They are grandfather, father, and son.

Did you pass this mental workout? Let us know in the comments and don’t forget to SHARE this post with your family and friends. For more puzzles and stories, follow us on Facebook!