There are 7 girls in a bus
Each girl has 7 backpacks
In each backpack, there are 7 big cats
For every big cat there are 7 little cats
Question: How many legs are there in the bus?
The number of legs is the password to unlock the Excel sheet.
If you open it, add your name and send it on to see who else can unlock it.
Send it back to let the person know you got it correct.
This is a real math problem so don't say that a bus has no legs.