If you love yes-or-no riddles and are looking for new ones, or would like to also play online
Have an online repository (website and app) where anyone can add yes-or-no riddles, and anyone can browse new ones to solve. You can play online with others, or just read the solution and play with friends.
Bring old and new customers in, and provide a fun, social and useful experience.
Have a separate room dedicated to the sale. Only allow a set number of people to go inside at a time. Next person can go in when another one comes out. People have to register in advance. People go inside in registration order. Each person has a time limit on the stay inside. They get a wristband that will beep when time is up. Payment for the goods happens inside.
To visualize where are the places that are still executing people and to what extent.
Overlay a map of the world with dots representing people who were either executed, are waiting to be executed or are executed now. Use different colors.
When you look up a professional (a doctor or lawyer) on the web using search it takes a long time to find the references that can be trusted. You might get no references at all or many references and it would take you a long time going through them all to find the relevant quality ones.
Human curated information pages with all the best links about a particular professional you are researching.
It’s inconvenient to ask Siri to launch an app when the phone is locked. You’ll be immediately asked to unlock it with your passcode or fingerprint.
Have a few rotating passcodes and say the right one when Siri asks for it to unlock and launch the app. Siri will recognize your voice and the passcode, and will always prompt you with the right hint as to what passcode you should use now.