wooden triangles

Can You Pass This Tricky IQ Test Without Breaking A Sweat?

Riddles are fun because they test our logic and reasoning. Plus, they’re super satisfying to solve. While a casual puzzle or two won’t give you an IQ score, it can tell you a lot about your thinking skills, observation skills, and in some cases, your patience. What can you derive from the following riddles?


How Many Triangles Are in This Picture?

How many triangles are in the picture? Riddle
Photo credits: Smalljoys.tv

Take your time counting the triangles. There may be a few missing in your initial glance. Scroll when you’re ready to check your answer. 


The answer is TEN triangles.


Einstein’s Riddle

Here is a famous logical puzzle. Rumor has it that Albert Einstein invented this difficult riddle when he was a child. Despite this being unproven, the puzzle has been dubbed “Einstein’s Riddle.” No matter who made it up, it requires proper logic and deduction to solve. While it may seem daunting at first, all you need is the patience to think it through properly, no tricks or misleading phrases. 


Here’s the riddle:


Five houses painted in five different colors stand in a row. One person of a different nationality lives in each house. The five homeowners all drink some type of beverage, smoke a certain cigar brand, and have a certain kind of pet. But none of the owners drink the same beverage, smoke the same type of cigar, or have the same pet.


Here are the clues:


1. The Brit lives in the red house.


2. The Swede keeps dogs as pets.


3. The Dane drinks tea.


4. The greenhouse is on the immediate left of the white house.

5. The green house’s owner drinks coffee.

6. The owner who smokes Pall Mall rears birds.

7. The owner of the yellow house smokes Dunhill.

8. The owner living in the center house drinks milk.

9. The Norwegian lives in the first house.

10. The owner who smokes Blends lives next to the one who keeps cats.

11. The owner who keeps the horse lives next to the one who smokes Dunhill.

12. The owner who smokes Bluemasters drinks beer.

13. The German smokes Prince.

14. The Norwegian lives next to the blue house.

15. The owner who smokes Blends lives next to the one who drinks water. [1]

Now here’s the question: Who owns the fish?

To find your answer, create a grid to fill in the given information. Use the categories Pet, Nationality, Smoke, Drink, and Color on one side, and the house numbers (one through five) on the top side. Then use deduction to fill in the remaining possibilities. 

Here’s the answer:

The fish belongs to the German in house #4. 

For a more detailed explanation, here’s a thorough video of the solving process: 

If you enjoyed these riddles, here are some more to keep your brain pumping:


  1. “Here’s a straightforward solution to the insanely complex ‘Einstein Riddle’.Business Insider. Kelly Dickerson. September 29, 2015
Sarah Biren
Freelance Writer
Sarah is a baker, cook, author, and blogger living in Toronto. She believes that food is the best method of healing and a classic way of bringing people together. In her spare time, Sarah does yoga, reads cookbooks, writes stories, and finds ways to make any type of food in her blender.