science and nature
Geography
Islam
Space & Earth
Riddles & Brain Teasers
100

What is the chemical symbol for water

 H2o

100

Which country is both an island and a continent?

Australia

100

What is the holy book of Islam?

Quran

100

 Which is the closest planet to the Sun?

Mercury

100

What was Mount Everest named before it was discovered?

 It was still Mount Everest

200

Which is the largest organ in the human body?

The skin

200

Which is the largest ocean on Earth?

The Pacific Ocean

200

: How many pillars of Islam are there?

5
200

What is the process by which plants make their food?

Photosynthesis

200

What is the only mammal capable of true flight?

The bat

300

How many bones are in the adult human body?

206

300

What is the capital of Australia?

Canberra

300

In which city was Prophet Muhammad (PBUH) born?

 Mecca

300

: Which gas do plants absorb from the atmosphere?

 Carbon dioxide

300

What is the powerhouse of the cell?

Mitochondria

400

What is the primary gas found in Earth's atmosphere?

 Nitrogen 78%

400

 Which U.S. state is the largest by land area?

Alaska

400

What is the name of the Islamic month of mandatory fasting?

Ramadan

400

How many colors are in a rainbow?

 Seven

400

What is the name of the world's longest river?

The Nile

500

 What was the first vegetable to be grown in space?

The potato

500

What is the longest mountain range in the world

The Andes

500

Which direction do Muslims face when performing daily prayers?


The Qibla (towards the Kaaba in Mecca)

500

What is the hardest natural substance on Earth?

Diamond

500

what can hold water but has holes

sponge

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