why number 8549176320 is one of a kind?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What is the riddle which can be asked all day with a different correct answer each time.

Out of the nine cats that you can see in the picture, there are only two that are completely identical. Can you find them out?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What does below rebus means ?