why number 8549176320 is one of a kind?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Can you count the number of blocks in the picture below?

How many sides does a circle have?

In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Can you solve below mathematical equation?

2^1234 - 2^1233

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?