 
 <prompt> ```
One mad scientist create shrink ray device wey, when e use am on anything, e go make am shrink by 50%. The scientist, wey dey eager to use im new invention, search im house for something to shrink zap. The first thing wey e see and zap na im wife, wey dey carry tray wey get 5 cups wey full with coffee. If each coffee cup hold 8 ounces of liquid before e shrink zap am, how many ounces of coffee remain after im wife and the cups wey full with coffee shrink zap?``` <response>: ```Bifor di zap, di wife hold 5 cups, each wit 8 ounces of coffee, for a total of 5*8=40 ounces of coffee.
Afta di zap, di coffee cups and dia contents shrink by 50%, for a total of 0.5*40=20 ounces of coffee.

Di ansa go be 20.``` 