Question

what can robots do that humans cannot do?
robots can cure blindness caused by glaucoma.
robots can set up machines to do experiments.
robots can find information instantly.
robots can fix all kinds of computers.

Explanation:

Robots can process data quickly. Humans have limitations in data - processing speed. Among the options, "Robots can find information instantly" implies a very fast data - retrieval and processing ability (instantly finding information is related to quick data handling). The first option about curing glaucoma is incorrect as robots are tools and not capable of curing on their own. The second option about setting up machines is more about a physical task that humans can also do. The fourth option about fixing all computers is too broad and not the key unique ability compared to the data - related ability.

Answer:

Robots can find information instantly.