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Quick trick square
(99) 22?

Step 1. Choose 100 as base
Step 2. Difference: 99-100 = -1
Step 3. Add the number with the difference that you got in Step 2 99+(-1) 98
Step 4. Multiplying result with base 981009800
Step 5. Now, add result with the square of the difference= 9800 + 1)2 = 9801
So our answer is (99) 9801

For your practice (101)

Elisha Otis and the elevator
Devices capable of lifting people into tall buildings have existed since the ancient Egyptians. And as the industrial revolution and the growth of cities led to taller buildings being constructed, people became tired of having to climb multiple flights of stairs. So elevators were invented, using either steam or electric engines which pulled up elevators with ropes.However, ropes have a tendency to break. And even being in an elevator only a few storeys high, if the rope broke and you plummeted with the carriage it would result in at least severe injury, if not death.
Otis actually invented the safety break, which would stop the elevator from crashing if it was activated by sudden falling when a rope broke. This removed a major risk of death from buildings taller than a few storeys, and spurred on the building of the first skyscrapers.

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Camels can down 30 gallons (113 liters) of water in just 13 minutes. The water is stored in the camel's bloodstream, rather than being stored in its fatty hump, which serves as a source of nourishment when food is scarce.