What is more useful when it is broken?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

How many times do a clock's hands overlap in a day ?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?