Daily Trivia Quiz - Day 188 (2026-05-07)

Question 1

Why can one winding line feel fairer than several separate teller lines?

Accepted Answer

Everyone is served in one clear order

Answer

It makes each teller work at the same speed

Answer

It shortens the building's actual floor space

Answer

It lets customers choose cash by denomination

Question 2

Why does dry-erase marker ink wipe off a whiteboard so easily?

Accepted Answer

A release agent keeps the pigment from gripping the surface

Answer

Its color evaporates after writing

Answer

Its ink is mostly powdered chalk

Answer

Its solvent turns into soap

Question 3

What is the 'piston effect' in a tunnel?

Accepted Answer

Vehicles push air ahead and pull air behind them

Answer

Air pressure builds up and slows the vehicle down

Answer

Fans create a one-way airflow to cool the tunnel

Answer

The tunnel shape amplifies sound like a pipe

Question 4

Why can using extra detergent make laundry come out worse?

Accepted Answer

Too many suds can trap soil and rinse poorly

Answer

Soap turns cold water into hard water

Answer

Detergent cancels the spin cycle

Answer

Extra detergent makes fabric waterproof

Question 5

Why do mall atriums often have high open spaces instead of simply adding more floor area?

Accepted Answer

They improve orientation and visual connection

Answer

They make the roof cheaper to build

Answer

They remove the need for elevators

Answer

They stop sound from traveling

Question 6

Why are hospital waiting areas often divided into many smaller seating clusters?

Accepted Answer

They reduce crowding and give families space

Answer

They allow staff to monitor patients more easily

Answer

They help visitors find exits more quickly

Answer

They make the space feel larger to new visitors

Question 7

Why do many pharmacy bottles have amber or brown plastic?

Accepted Answer

To reduce light exposure

Answer

To show the medicine is liquid

Answer

To make labels stick permanently

Answer

To keep pills magnetized

Question 8

Why are red lights usually placed at the top of vertical traffic signals?

Accepted Answer

So drivers can identify red by position

Answer

Because red bulbs are always heavier

Answer

To keep the hottest light away from snow

Answer

Because cameras only read the top lens

Question 9

Where was modern tactile paving first introduced?

Accepted Answer

Japan

Answer

Canada

Answer

Italy

Answer

Brazil

Question 10

Why do some manhole covers have raised patterns on top?

Accepted Answer

To improve grip for tires and shoes

Answer

To show which way sewage flows

Answer

To make the cover easier to hear underground

Answer

To cool the metal faster after casting