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

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

I add 5 to 9 and get 2. The answer is correct, so what am I?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

By using 'because' continuously three times, can you make an English statement ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What you cannot hold but it is yours?

Complete the table series riddle by finding the number that can replace "??".

Which is heavier: a ton of bricks or a ton of feathers?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.