Spot what is wrong here in below Picture?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

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

I add 5 to 9 and get 2. The answer is correct, so what am I?

Solve the counting riddle by identifying the number of triangles in the given picture.

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

The more you take me, the more you leave me behind.
Who Am I?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?