Daily Trivia Quiz - Day 165 (2026-04-02)

Question 1

This phenomenon is called a Brocken spectre: when the Sun is behind you, your shadow is cast onto mist or cloud below, often surrounded by a colored halo caused by light scattering through tiny water droplets.

Accepted Answer

Their own shadow

Question 2

Ancient Pompeii's walls were not just for decoration. During elections, locals used them for what very familiar purpose?

Accepted Answer

Campaign ads

Question 3

How can humpback whales trap a school of fish without touching it first?

Accepted Answer

They circle it with bubbles

Question 4

In some European towns, before radios and electronic check-ins, how could a town night watchman prove he was actually awake and patrolling?

Accepted Answer

By spinning a loud rattle

Question 5

When danger appears, some cichlid parents quickly gather their scattered babies for protection. Where do the young go?

Accepted Answer

Back into the parent's mouth

Question 6

Why did some wealthy Venetian women wear platform shoes that could be extraordinarily tall, sometimes nearing 20 inches, so tall they could barely walk without help?

Accepted Answer

To keep dresses above street filth

Question 7

Some early barcodes were designed like a bullseye instead of simple stripes. What problem was that trying to solve?

Accepted Answer

Scanning from any angle

Question 8

Why do newly hatched wood ducks leap from high tree cavities to the ground even though they cannot fly yet?

Accepted Answer

They are following their mother

Question 9

Long before digital maps and messaging, some hobos in North America left tiny marks on fences, posts, or walls for the next traveler. What were those marks used for?

Accepted Answer

Sharing local warnings and help

Question 10

In a few rivers, the incoming tide can race upstream as a single breaking wall of water. What river shape helps make that happen?

Accepted Answer

A narrowing, shallow channel