Science
Technology
Engineering
Math
Riddles
100

The reason birds fly south for the winter.

What is to find food?

100

The meaning of CPU.

What is Central Processing Unit?

100
Thomas Jefferson would patent an invention every __ weeks.

What is 3?

100

The number of sides a nonagon has.

What is 9?

100

Use only the number 8 and addition to get the number 1,000. (ie using 8,88,888, and addition)

What is 888 + 88 + 8 + 8 + 8?

200

The distance from Earth to the Sun (in miles).

What is 93 million miles?

200

A telescope launched by NASA in 1990.

What is the Hubble Telescope?

200

The chemical element identified as Cd on the periodic table.

What is cadmium?

200

The number that comes next in the Fibonacci sequence:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, __


What is 55?

200

The most common digit between 1 and 1,000 (inclusive).

What is 1?

300

The cause of lightning.

What is an air current that causes a negative charge at the bottom of a cloud to escape and hit the positively charged ground?

300

The year Nintendo was founded.

What is 1886?

300

An electrical device that changes direct current to alternating current.

What is an inverter?

300

This mathematical symbol was determined in 1882.

What is Pi?

300

The least common digit between 1 and 1,000 (inclusive).

What is 0?

400

The reason leaves change color in the fall and winter.

What is less photosynthesis due to a lack of sunlight and water?

400

This person founded Microsoft with Bill Gates.

Who is Paul Allen?

400

Sir Charles Parsons is associated with this type of power source.

What is steam turbine?

400

The number 23 in binary.

What is 10111?

400

If ½ of 5 = 3, then 1/3 of 10 is __.

What is 4?

500

The age of the Earth.

What is 4.54 billion years?

500

An mp4 file contains this type of media.

What is sound and video?

500

The height or depth of a wave from the middle to the crest or trough respectively

What is amplitude?

500
The number 11 in hexadecimal.

What is B?

500

A merchant can place 8 large boxes or 10 small boxes into a carton for shipping. In one shipment, he sent a total of 96 boxes. There are more large boxes than small boxes. How many cartons were shipped?

What is 11?