82: Double Stuffed.

CNN reported last summer on a teacher named Dan Anderson who looked at this weighty issue:

Here's some evidence from his website, in case you can't locate an accurate scale:

Evidence:

10 Original Oreos:

10 Double Stuf Oreos:

10 Mega Stuf Oreos:

5 Wafers:


Dan says: "I’ll leave the math to you. Or if you’re terrifically lazy, spoilers found here."