It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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

ST ND RD TH '?'

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

The dirtier I get, the whiter I look. Who am I?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

Find the missing number in the sequence below:

What kind of band never plays music?

Which flower has two lips?