Brain Test Level 40: We must be ready before the guests arrive!
Brain Test Level 40
Screenshots

Quick Answer
Rub all the dirty wine glasses with your finger to clean them.
Skills Tested
Step-by-Step Solution
- 1) Look at the glasses on the table and spot which ones are dirty.
- 2) Run your finger across each dirty wine glass.
- 3) Rub each one until the smudges are gone.
- 4) Clean every glass so the table is ready for the guests to arrive.
Hint
Reveal a hint
Instead of looking for a cleaning tool, use your finger to polish the dirty glasses.
Why It Works
The puzzle expects you to realize your finger is the cleaning tool. Rubbing across the dirty glasses removes the spots, and once every glass is clean the room is ready before the guests arrive.
Frequently asked questions
How do I solve Brain Test level 40?
Rub each dirty wine glass with your finger to wipe away the smudges until every glass is clean.
What is the answer to Brain Test level 40?
You clean the glasses by rubbing them with your finger, polishing each one until they are all spotless and ready for guests.
What is the trick in Brain Test level 40?
There is no rag or tool to find, so you must use your finger itself as the cleaning tool to wipe the dirty glasses.
Which items need cleaning in Brain Test level 40?
Only the dirty wine glasses on the table need cleaning, and you rub them with your finger to get them ready.
Is there a video walkthrough for Brain Test level 40?
Yes, the embedded video on this page shows the rubbing gesture to polish the glasses for Brain Test level 40.
Do I need a sponge or cloth in Brain Test level 40?
No, simply rubbing the dirty glasses with your finger is enough to clean them for the guests.