What does this Rebus Picture mean?

How many triangles can you find in this given picture?

I make two people out of one. What am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Different lights make me strange by changing me into different sizes. What am I?

What is the end of everything?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

The answer I give is yes, but what I mean is no. What was the question?

A blonde put eyeliner on her head. Why?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?