Who is often called the 'first African-American' inventor?
View Answer Report Error Discuss
Who Invented Worldwide Standard Time Zones ?
What furniture item was invented by California furniture designer Charles Prior Hall in 1968?
What drink was invented by Charles Leiper Grigg in 1929?
Who invented the BALLPOINT PEN?
Who was the first person to patent the JET ENGINE?
FROZEN FOOD – Who discovered the first practical method of freezing food?
Who invented fuel cells in 1839?
Aptitude and Reasoning
General Knowledge
Puzzles
Interviews
Technical
Certifications
Exams
Job
Roles
True or False
Exams