Riddles
Stuff people just don't know
Math
Random
Electronics
100

A polygon with trio of straight rims, Trio of tips all join and lock. What is this form?

Bonus: What is missing from the riddle.

What is a triangle?

Bonus: What is the letter e?

100

2x²−7x−4=0

Solve for x.

x = 4 or x = −1/2

100

The ratio of cats to dogs is 3:5. If there are 40 animals total, how many cats are there?

What is 15 cats?

100

Are there more stars, grains of sand on Earth, or cells in the body?

What are stars?

100

What is an insulator?

What is a material that does not let electricity flow through it easily.

200

1 – I blaze above, I warm the day, Without my light, life fades away. 2 – I open wide when rain is near, I keep you dry, no need to fear. 3 – I leave my mark in midnight black, On page or skin, there’s no turning back. 4 – I sparkle bright in silver or gold, I’m often worn, or safely sold. 5 – Red or green, I grow on trees, A crunchy bite that’s sure to please. Take first letter of each riddle to spell ______.

Who is Suija?

200

Which material is strongest against hammer?

Kevlar, tempered glass, or steel.

What is kevlar?

200

A recipe uses 2 cups of sugar for every 5 cups of flour. If you use 17.5 cups of flour, how much sugar do you need?

What is 7 cups?

200

What is the largest desert?

Where is Antarctica?

200

What do touchscreen detect?

What is electric conductivity?

300

I speak in symbols, yet I have no tongue. I build up towers from nothingness sprung.

I measure the endless, make chaos seem small. Without me, your science would surely just fall.

What am I?

What is math?

300

You have 3 apples. You take away 2.

How many do you have?

What is 2 apples?

300

A map scale is 1 inch = 3 miles. If two towns are 4.5 inches apart on the map, how far apart are they in real life?

What is 13.5 miles?

300

What existed first, shark, trees, or jawed fish?

What are sharks?

300

Why is it almost impossible to make blue LED?

Why is it that blue light has high energy?

400

I have four legs, but cannot walk. I often listen but never talk. I’m pulled out when it’s time to eat or when guests need a place to sit. I stand in rows, columns, and pairs. What am I, built for backs and rears?

What is a chair?

400

What animal has no knees? 

Penguin, a cardinal, centipedes

What is a centipede?

400

5 + 3x = 5x − 7

What is x?

What is 6?

400

Where are the most pyramids?

Where is Sudan?

400

What game on Roblox has the most visits?

What is Brookhaven RP?

500

I’m not alive, but I grow. I don’t have lungs, but I need air. I don’t have a mouth, but water kills me. What am I?

What is fire?

500

Which of the following has red blood?

Octopus, shrimp, or freshwater snails.

What are freshwater snails?

500

10 − 2x = 4(3−x)

What is 1?

500

What is the most dirty?

Toilet, phone, keyboard.

What is phone?

500

What do batteries store?

What is chemistry?

(It produces electrons not stores it.)

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