O'logies
Common Denominator
Musical Instruments
Riddles
Planets by the Numbers
400

This field often involves measuring the magnitude of earthquakes 


Seismology

400

Music, a fish, and a Libra 


Scales

400

This 8 string instrument resembles a lute


Mandolin

400

I go around in circles, but always straight ahead. I never complain, no matter where I am led. What am I?


A Wheel

400

Mars

4

800

The study of politics and policies of the Soviet Union and former communist states


Sovietology

800

A hurricane, a potato, and a needle


Eyes

800

What instrument is used to summon Buddhist lungs to prayer?


A Gong

800

What has many keys but can’t open a lock?


A Piano

800

Uranus

7

1200

The study of faeces


Scatology/Coprology


1200

Canada, Lesotho, and Jamaica


Commonwealth

1200

This pattern taught to drum students all over follows a Right Left Right Right or Left Right Left Left sequence 


A Paradiddle

1200

I run but never walk, and fall but never trip. You need me, but I don’t need you. What am I?


Water

1200
Venus

2

1600

The creator of SpongeBob SquarePants, Steven Hillenburg, specialised in this field before he joined Nickelodeon


Marine Biology

1600

Geneva, Comicon, and saying “please” and “thank you”


Conventions

1600

What is the flexible part of an accordion called?


The Bellows

1600

What begins with an E and only contains one letter


Envelope

1600

Earth

3

2000

Oenology is the study of this consumable


Wine

2000

A deck of cards, Denmark, and a bed


Kings

2000

This is the letter and number associated with "concert pitch", or the frequency that most instruments are tuned to

A440hz

2000

What breaks and never falls, and what falls but never breaks?


Day and Night

2000

Neptune

8

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