Brain Teasers and Riddles
What has keys but cannot open locks?
A piano
What is the smallest country in the world?
Vatican City
What is the hardest natural substanc?
Diamond
Which colour absorbs the most heat?
Black
Which bird can mimic human speech?
Parrot
What can travel around the world while staying in one corner?
A stamp
What is the only continent with no desert?
Europe
What is dry ice made up of?
How many squares are there on a chessboard?
64
What is the largest animal on Earth?
Blue Whale
What gets broken without being touched?
A promise
Which city is known as the City of Canals?
Venice
What is the chemical symbol for gold?
Au
What is the only food that never spoils naturally?
Honey
Which animal never forgets, according to a popular saying?
Elephant
Which month has 28 days?
All months
Which country invented paper?
China
Which vitamin is produces when skin is exposed to sunlight?
Vitamin D
Which metal is liquid at room temperature?
Mercury
What is a baby Kangaroo called?
Joey
What comes once in a minute, twice in a moment, but never in a thousand years?
Which country has the most time zones?
France
Which part of the body contains the smallest bones?
Ear
Strawberry
How many hearts does an octopus have?
Three