Q1.
Are you able to move your finger through the water?
Answer
Yes — easily, and without breaking or cutting the water permanently. Try the same with a stone and you cannot move your finger through it at all.
What your finger actually does is temporarily displace the water. The interparticle attractions in a liquid are weaker than in a solid, so the particles can be pushed aside and can slide past one another. The moment you remove your finger, the particles close in again and the position of the water is restored — there is no cut, no hole and no mark left behind.
But the attractions are not zero: they are still strong enough to keep the particles close together. That is exactly why the water stays as one body with a definite volume in the vessel, instead of scattering into the room the way a gas would. A liquid sits between a solid and a gas, and this activity lets you feel that.