Brain Test Level 78: How many cubes are there?
Brain Test Level 78
Screenshots

Quick Answer
Count both the visible cubes and the hidden support cubes underneath to get a total of 10, then input 10 and submit.
Skills Tested
Step-by-Step Solution
- 1) Count the cubes you can clearly see in the picture.
- 2) Remember the hidden support cubes underneath that hold the stack up.
- 3) Add the hidden cubes to the visible ones to reach the full total.
- 4) Confirm the total is 10, input 10, and tap submit to finish.
Hint
Reveal a hint
Do not stop at the cubes you can see. Underneath the stack there are support cubes holding it up.
Why It Works
The visible cubes sit on top of hidden support cubes, so a proper count must include both. Adding the supports to the visible cubes gives the full total of 10.
Frequently asked questions
How do I solve Brain Test level 78?
Count the visible cubes and also the hidden support cubes underneath, then input 10 as the grand total and submit.
What is the answer to Brain Test level 78?
Enter 10, because the visible cubes plus the hidden support cubes underneath give a total of ten.
Why must I count hidden cubes in Brain Test level 78?
Because the stack is supported by cubes you cannot see, and leaving them out makes the total wrong.
Where are the hidden cubes in Brain Test level 78?
They are the support cubes underneath the visible stack, and you must include them to reach 10.
Is there a video walkthrough for Brain Test level 78?
Yes, the embedded video on this page points out the hidden support cubes so you can count to 10 correctly.
What is the trick in Brain Test level 78?
The trick is counting only what you see; the hidden supports must also count to reach the true answer of 10.