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Gia Linh Luu

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Until I am measured, I am not known. Yet how you miss me, When I have flown! What am I?
I am a potato's favorite tool and I give him a lot of power. You can sit with me all day but when my energies drain my partner would only respond to your touch. What am I?
I have keys, but no locks. I have space, but no room. You can enter but not exit. What am I?

Sewing machine

In 1842, the first U.S. patent (of which there is any record) for a sewing machine was issued to John J. Greenough of Washington, DC. (No. 2,466) as "A Machine for Sewing or Stitching all Kinds of Straight Seams." The needle was gradually tapered to a point at each end, with an eye in the middle. It used pairs of pinchers, one on each side of the work to alternately draw the thread back and forth. It did not use thread from a bobbin of thread. Instead, the lengths of thread were inserted in the needle, similar in length to those used in hand sewing.*

The almonds

A priest decides one day to visit one of his elderly parishoners, Mrs. Smith. He rings the door bell and Mrs. Smith appears. "Good day, Mrs. Smith. I just thought I would drop by and see how you are doing."

"Oh just fine Father, come on in, and we'll have some tea."

While sitting a the coffee table, the priest notices a bowl of almonds on the table. "Mind if I have one?" the priest says.

"Not at all, have as many as you like."

After a few hours, the priest looks at his watch and alarmed at how long he has been visting, says to Mrs. Smith, "Oh my goodness, look at the time. I must be going. Oh, but dear me, I have eaten all your alomonds. I'll have to replace them the next time I visit."

Mrs. Smith replied, "Oh don't bother Father. Ever since I lost all my teeth, it's all I can do just to lick the chocolate off them."

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