Can you count the number of triangles in the given picture?

What is wrong in the below Picture?

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?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

When we see 2 but call 10?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.