Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

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Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What is the longest word in the dictionary?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

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I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?