Can you fill the blank with the correct number?

6 30 870 756030 _____

What has lots of eyes, but can’t see?

What is both possible and impossible at the same time?

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

Why is the Hole below a Lock?

How many triangles are there in the picture below?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Replace the question mark with the correct number.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?