Daily Trivia Quiz - Day 87 (2026-01-05)

Question 1

Why do tennis players grunt when hitting the ball?

Accepted Answer

It helps stabilize the core and increases power

Question 2

Why do marathon runners sometimes lose toenails?

Accepted Answer

Repeated impact causes blood blisters under the nail that eventually fall off

Question 3

Which music genre was accidentally created by a broken amplifier?

Accepted Answer

Rock and roll (distortion)

Question 4

What are the extra top eyelets on many running shoes for?

Accepted Answer

A “runner’s loop” lacing to stop heel slip and blisters

Question 5

Which instrument once used spinning glass bowls and was rumored to unnerve listeners?

Accepted Answer

The glass harmonica

Question 6

Roughly how many stable social relationships can most people maintain, known as Dunbar’s number?

Accepted Answer

Around 150

Question 7

How do airbags inflate in a crash within milliseconds?

Accepted Answer

An accelerometer triggers a chemical charge that makes gas instantly

Question 8

Why can’t horses vomit?

Accepted Answer

A strong one-way valve and stomach angle block reverse flow

Question 9

Why can solar panels produce more power on cold, sunny days than on hot ones?

Accepted Answer

Lower temperatures reduce electrical resistance so cells work more efficiently

Question 10

How did astronauts get a wrench on the ISS without a rocket shipment in 2014?

Accepted Answer

They 3D-printed a emailed design on orbit