Which number should replace the question mark?

Count the number of triangles in the below picture?

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?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

I shave every day, but my beard stays the same. What am I?

By using 'because' continuously three times, can you make an English statement ?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

who is silent in the parliament?

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