Curiosities
present perfect vs present perfect continous
General knowledge
Riddles
Capitals and countries
100

What's the largest organ of the human body?

The skin

100

I ______(cycle) all they long that's why I am very tired

have been cycling

100

What's the hardest substance on Earth?

Diamonds

100

I have wheels but I am not a bike. I have a horn but I am not a cow . What am I? 

A car

100

The capital city of Cuba is?

Havana

200

Which part of the human body continoues to grow throughout a person's life?

The nose and ears( they don't truly grow, but cartilage changes over time)

200

Someone _________ (eat) my cookies. There are none left

has eaten

200

Which ocean is the largest ocean of the world?

The pacific ocean

200

I have keys but I can't open locks. What am I ?

A piano

200

Ottowa is the capital city of _______

Canada

300

Which organ uses the most energy in the human body?

The brain. It uses about 20% of the body's energy

300

How many books _______ you ______ (read)?

have/read

300

Which planet is known as the red planet?

Mars

300

What gets wetter the more it dries?

A towel

300

Which country is located in two continents?

Turkey/ Russia

400

How many liters of blood does the average human body contain?

About 5 liters of blood

400

How long ______ you _______(know) Peter?

have/known

400

How many bones does a human body have?

206

400

What has a neck but no head , and wears a cap?

A bottle

400

In what continet is Russia located?

Asia

500

What's the strongest muscle of the human body?

(based on force)

The jaw muscle

500

They _________(travel) for months . They ______(visit) three countries so far

have been traveling / have visited

500

What gas do humans need to breath in order to survive?

Oxygen

500

I speak without a mouth and hear without ears. What am I?

An echo

500

Which is the biggest country of the world?

Russia