<p><strong>The average amount of tries it took for me was 17 for a Whetstone. </strong>To get a Whetstone you need to use Strange Stones during the <a rel="nofollow" href="https://tibia.fandom.com/wiki/Bigfoot%27s_Burden_Quest">Bigfoot's Burden Quest</a> - <a rel="nofollow" href="https://tibia.fandom.com/wiki/Bigfoot%27s_Burden_Quest/Spoiler#Grindstone_Hunt">Grindstone task</a>. I've done this task many times in the past but I've personally never counted until this moment. What I want you to know is that it seems like the chances of you get the Grindstone can be either easy or hard. I'm not sure if it depends on the stone you touch or what, but sometimes I can be lucky and sometimes not. Here are my results of what I did for 10 different occasions so it should give you a rough idea of what to expect. I'm sure the more amount of tries the better results but this is what I have thus far:</p><ul><li>Amount it took to get 1 Whetstone for 10 different tries: 2, 3, 5, 5, 13, 20, 23, 30, 31, 34</li><li>Minimum amount of tries to get Whetstone: 2</li><li>Maximum amount of tries to get Whetstone: 34</li><li>Average amount of tries to get Whestone: Whetstone: 16.6 tries rounded to 17.</li></ul>