A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

What does this below rebus puzzle mean?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

What Deficiency does the below rebus represent?

VIT_MIN