Years ago, when I taught Mathematics to both college and high school students, I used to show a fun puzzle that I found online called the Flash Mind Reader. It was a trick that had the students pick a number, then do a quick calculation. The Mind Reader would be able to guess the symbol next to their answer. Since then, Flash has fallen out of favor, so I thought I would recreate the trick in Salesforce.
Pick a 2 digit number, (example 23) then add the two digits together i.e. 2+3 = 5. Take your answer and subtract from the original number (23 – 5) and look up the symbol in the table. The Mind Reader will be able to tell you which symbol you picked when you click the Reveal button.
To try it out, go to this url: https://taylorkingsbury2-dev-ed.develop.my.site.com/
Or you can install it using this link in your dev org or scratch org, then navigate to the Mind Reader app in Salesforce:
https://MyDomainName.lightning.force.com/packagingSetupUI/ipLanding.app?apvId=04taj00000014UbAAI