Google Image Quiz is a reverse search engine. See the image, guess the query.
Read 200+ comments about the project on Reddit. Here’s a few:
I’m supposed to recognize “lactobacilli”?
This is great but needs to be much easier, nobody is ever going to get ‘sheerest’, especially when the image is a woman wearing a normal looking dress. This will only work if you use simple words.
So how much do i get paid for this job?
This is goddamn impossible.
Here’s another Google Image Quiz, made in 2006.