The city of Gondar, one of 117 Ethiopian cities that benefited from the World Bank’s Ethiopia Urban Institutional and Infrastructure Development Program (UIIDP). Photo: Adobe Stock With World Bank ...

You'll have to stretch your brain to figure out some of these easy, funny and hard riddles for adults If you’re looking to keep some riddles for adults in your back pocket as a way to strike up a ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...