Daily Trivia Quiz - Day 199 (2026-05-18)

Question 1

What design challenge makes truly child-resistant packaging hard to get right?

Accepted Answer

It must also be senior-accessible — too hard to open defeats the product

Answer

The mechanism must survive repeated drops without breaking

Answer

Regulations require the cap to be reusable at least 50 times

Answer

Child-resistant caps must also be airtight to preserve medication

Question 2

When automatic elevators began replacing human operators, what adoption problem did building owners and elevator companies have to overcome?

Accepted Answer

Many passengers were nervous about riding without a human operator present

Answer

Elevator unions successfully blocked installation in most cities

Answer

Automatic doors were widely mistaken for emergency exits

Answer

Most buildings had to hire musicians to cover the motor noise

Question 3

What everyday chore could be critical to a lighthouse keeper's job?

Accepted Answer

Keeping the lens and windows clean

Answer

Painting the sea-facing rocks white

Answer

Sorting sailors' mail by destination

Answer

Measuring fish caught near the tower

Question 4

What was one surprisingly valuable thing street sweepers removed from horse-era city streets?

Accepted Answer

Horse manure for fertilizer

Answer

Coal dust for ink

Answer

Broken glass for sugar refining

Answer

Sawdust for making soap

Question 5

What service did a 19th-century crossing sweeper offer pedestrians?

Accepted Answer

Clearing a clean path across the street

Answer

Carrying them over puddles in a chair

Answer

Measuring carriage speed for police

Answer

Selling maps of safe neighborhoods

Question 6

What modern task is closest to the old job of a public letter writer?

Accepted Answer

Helping someone write an official form or application

Answer

Delivering parcels by bicycle

Answer

Repairing a typewriter ribbon

Answer

Printing postage stamps

Question 7

Why do many tall buildings have a twisted or irregular shape rather than a simple rectangular box?

Accepted Answer

To disrupt wind vortices that would otherwise cause the building to sway dangerously

Answer

Irregular shapes allow more floor area on upper floors where views are premium

Answer

Twisted designs reduce the building's shadow footprint on the street below

Answer

Irregular facades increase exterior surface area, creating more window frontage for premium views

Question 8

In cities without running water, water carriers sold water door to door. What made the quality of their product hard for customers to judge?

Accepted Answer

It depended heavily on which river section or well the carrier drew from

Answer

The material of the barrel, which could leach flavors into the water

Answer

The time of day they collected it, since morning water was believed purer

Answer

The distance they traveled, since water was thought to 'settle' on longer routes

Question 9

Why do many library and airport carpets have such busy, chaotic patterns?

Accepted Answer

To hide stains and dirt between cleanings

Answer

Complex patterns reduce visual fatigue for people sitting on the floor

Answer

The texture of patterned carpet absorbs sound better than plain carpet

Answer

Different patterns mark different sections as a wayfinding tool

Question 10

Why can a price like $2.99 feel noticeably cheaper than $3.00, even though the difference is only one cent?

Accepted Answer

People overweight the leftmost digit

Answer

Sales tax is calculated differently

Answer

Coins make small prices feel larger

Answer

Stores round down at checkout