What does this rebus riddle means ?

How many triangles can you find in this given picture?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

What does Alexander the Great and Winnie the Pooh have in common?