This route was not a single road, but a network that connected East and West for centuries.
Question: What was it called?
The Silk Road
At first, this technology was extremely large and expensive. Today, it fits in your pocket.
Question: What technology is this?
Phone
What goes up but never comes down?
Your age
This gas is essential for humans to breathe and survive.
Question: What gas is it?
Oxygen
A farmer has chickens and cows. Together they have 18 heads and 50 legs.
Question: How many cows does the farmer have?
8 cows (and 10 chickens)
In ancient times, this object symbolized power and authority. Today, it is associated more with knowledge and learning.
Question: What object is this?
A book
Originally, this technology was created for military communication. Later, scientists used it for research, and eventually it became part of everyday life.
Question: What technology is this?
The Internet
If you have me, you want to share me. If you share me, you don’t have me anymore. What am I?
A secret
This part of the human body controls thoughts, memory, and movement.
Question: What is it called?
The brain
A bus leaves the station at 8:00 am and arrives at 10:00 am. Another bus leaves at 9:00 am and travels at twice the speed of the first bus.
Question: At what time will the second bus catch up with the first bus?
9:30 am
This war was called “the war to end all wars,” yet it led directly to an even larger conflict.
Question: What war was this?
World War I
Originally developed for calculations during war, this technology later changed business and education.
Question: What is it?
Computer
I have cities with no houses, rivers with no water, and forests with no trees.

This organ pumps blood throughout the human body.
Question: What organ is it?
The heart
A train travels 60 km in 1 hour and 30 minutes.
Question: What is its average speed in km/h?
40 km/h
This leader was the first President of the United States.
Question: Who was he?
George Washington
This device translates physical movement on a surface into digital movement on a screen.

You see me once in a minute, twice in a moment, but never in a thousand years. What am I?
The letter M
This simple machine allows heavy objects to be lifted more easily using a flat surface.
Question: What is it called?
A lever
I am a number less than 100. If you divide me by 4, the remainder is 3. If you divide me by 5, the remainder is 4.
Question: What number am I?
19
This explorer, sailing for Spain in 1492, reached the Americas while searching for a new route to Asia.
Question: Who was he?
Christopher Columbus
This system helps search engines decide which information is shown first.
Question: What is it called?
An algorithm
You can hold it without touching it, and you can lose it even if you keep it.
breath
This part of the human body sends messages between the brain and other parts of the body.
Question: What is it called?
Nerves
I am a number between 1 and 100.
When divided by 6, the remainder is 4.
When divided by 5, the remainder is 3.
Question: What number am I?
43