Can you replace the question mark with the correct number?

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?

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

Buy me, smell me or deliver me, I do not change.

Who am I?

What is the next number in the series?

15 29 56 108 208 ?

There is a rock group of four men that do not sing. Name It?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?