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

Can you fill the blank with the correct number?

6 30 870 756030 _____

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

How many bananas can you eat if your stomach is empty?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?