Riddles
Math: 30 seconds
Science True or False
In general
100

What has words but never speaks?

A book.

Credits: Gemini

100

sq root of 6400

80
100

Water and bacteria evaporates.

False

100

How many elements in the periodic table?

118.

200

Where does today come before yesterday?

In a dictionary

Credits: Gemini

200

36 x 13

468.

You're teen/adults!

200

mass = force x acceleration

False. Force = mass x acceleration.

How would you get this one wrong?

200

"Indeed, I move fast sometimes." Mike says.

What is the bolded word in grammar?

adjective, noun, etc

What's an adverb?

300

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

A river.

Credtis: Gemini

300

The lowest infinity

ℵ₀

Aleph null

300

The Sun switches North and South every 10 years. This causes Solar Minimum and Maximum.

False. It is every 11 years

300

Pick a number from 1 - 35. Let's see if you are lucky.

17. Were you lucky?

400

There are 100 people in a room. 99% of them are left-handed and 1% are right-handed. How many left-handed people need to leave the room to make the left-handed percentage to 98%?

50 People!

400

If 3x−y=12, what is the value of 8x2y?

2^12

400

Neodymiun is the strongest (or heaviest) magnet in the world.

True.

400

Joke:

What candy does a prisoner want before execution?

A life saver. Get it?

500

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

The horizon.

Credits: Good Housekeeping

500

The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.

What is the value of a?

-3

500

There are 23 organs in the human body.

False. After some research, I found that there are 78 organs in the human body!

500

There is a clothing store in Bartlesville. The owner has devised his own method of pricing items. A vest costs $20, socks cost $25, a tie costs $15 and a blouse costs $30. Using the method, how much would a pair of underwear cost?

$45. The store charges $5 for each letter in their name.