Question

Which five of these were invented in the 1920s?
Water skiing
Lie detector
Penicillin
Microwave oven
Garbage disposal
Band-Aids
Velcro
Tape recorder

Answer 1

Answer:

water skiing - 1922

Lie detector - 1921

Penicillin 1928

Garbage disposal 1927

Band-Aids 1920

Tape recorder 1928

Answer 2

Concept: 1920's invention period was Jan 1, 1920 to DEC 31, 1929.

Find: Choose which were invented in the 1920's?

Solution:

1. Water skiing              1922

2. Lie detector               1921

3. Penicillin                    1928

4. Garbage disposal     1927

5. Band Aids                  1921

Final answer: Water skiing, lie detector, penicillin, garbage disposal and band aids.

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