Hi, here is the answer to the brain teaser question! (sorry I am late with the answer, I was delayed by studies at school)
The question was What is the product of 5 multiplied by 6 divided by 3?
The answer is:

Product means multiplied so, 5 x 6 = 30, then we divide 30 / 3 = 3
The answer is three (3)

I will post the lesson for this very soon, possibly today!

See you later!
-Joel