Navigate to Settings >> Data Usage >> Network Usage and here, you can see the exact number of messages and multimedia you have sent/received in numbers and in bytes. You can also see statistics on number of WhatsApp call you have made or received, bytes consumed, etc.
Disclaimer: These were all the WhatsApp Tips, Tricks, Tweaks, Hacks and Secrets that we have found till now. If you know any other interesting trick, please share it in the comments section below. All the WhatsApp Tips and Tricks we are providing through this article are for educational purpose only. Neither we nor WhatsApp (or any other app/service) will be responsible for any inappropriate use of these tricks.
If you're planning to become one of the smartest WhatsApp users, you can achieve that by learning all the tricks provided here in detail.
Whenever you feel like going back to Table of Contents just click on the Table of Contents link provided below each trick. Do share this article if you find it helpful. Thanks