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Expert Riddles for Adults

Hard Health

Where are the most sweat glands located?

Hard Health

What is the rarest blood type?

Hard Water

How much does a cubic foot of water weigh?

Hard Water

How often is the air's water replenished?

Hard Animals

What is the smallest mammal on Earth?

Hard Animals

What animal has the longest lifespan?

Hard Animals

Length of the largest blue whale measured?

Hard Space

How long to drive to the nearest star at 70 mph?

Hard Space

How long would it take to walk to the moon?

Hard Space

How many orbits has Neptune made since discovery?

Hard Space

What shape is the moon?

Hard Space

How long for one orbit around the galactic center?

Hard Space

How fast does the solar system orbit the Milky Way?

Hard Space

How many stars are in the universe?

Hard Space

How long to fly a plane to Pluto?

Hard Chemistry

Who is the father of modern chemistry?

Hard Chemistry

When was the first Nobel Prize in chemistry awarded?

Hard Chemistry

When was the modern periodic table introduced?

Hard Hard Science

What does a conchologist collect?

Hard Hard Science

What are the most common elements in the human body?

Hard Hard Science

Are the sun and moon the same size?

Hard Science

Next element in: H, Be, F, S, Mn, Kr, In, Gd, Tl?

Hard Science

How many bounces will it take for a ball to stop?

Hard Science

Why did Andrew die after mopping bleach with a rag and fluid?

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