Can you fill the blank with the correct number?

6 30 870 756030 _____

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.

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What has many keys but can’t open a single lock?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?