Math
Geography
English
Riddles
Hard Riddles
100

a = 7

b = 8

what is ab = 

56

100

How many continents are there? And name them 

7

Asia, Africa, North America, South America, Antarctica, Europe, Australia

100

When are commas used 

Use commas to separate independent clauses when they are joined by any of these seven coordinating conjunctions: and, but, for, or, nor, so, yet. Example: I love vanilla ice cream, but my brother prefers chocolate.

100

I’m tall when I’m young, and I’m short when I’m old. What am I?

a candle 

100

I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

an echo 

200

7.7 x 109  in scientific notation 

7,700,000,000

200

how many oceans are there and name them 

5

Atlantic, Pacific, Indian, Arctic, and the Antarctic

200

when are quotation marks used 

Quotation marks are used primarily to enclose or set off exact words.

200

What has to be broken before you can use it?

an egg

200

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

a map 

300

2x+5y=8

Find the slope 

m=-2/5

300

Who was the Declaration of Independence first drafted by

Thomas Jefferson 

300

define commemorate

to celebrate 

300

What is full of holes but still holds water?

a sponge 

300

What disappears as soon as you say its name?

silence 

400

3n+2=17

5

400

How did WWI come about?

The assassination of Austrian Archduke Franz Ferdinand

400

define diligent 

Hard-working 

400

What can you break, even if you never pick it up or touch it?

a promise 

400

I have keys, but no locks and space, and no rooms. You can enter, but you can’t go outside. What am I?

a keyboard 

500

4x – 10 ≥ 22 or x – 5 < -6

x<−1 or x≥8

500

When did WWI end 

November 11 1918

500

I'd like to help you out with a loan, but unexpected car repairs have managed to DEPLETE my bank account. 

A. to use up. 

B. to forget. 

C. to find. 

A. to use up. 

500

what can you keep even after giving it to someone 

a promise 

500

How many letters are in the alphabet?

there are 11 letters in the alphabet 
M
e
n
u