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

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Which fur should we be getting from the Lion?

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?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What do you see in the image below

You can see three almost identical images below. Can you spot the odd one out from them?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?