At first, it seems violation of Energy balance, but if you observe carefully, you will notice rotational speed slows down as the egg stands up.

Friction is key here. 

Different phases of the Moon are definitely not shadows of the Earth.

Then, how do they form? 🤔

To see an object light should reach your eyes. Sunrays reflect away from dark parts of the Moon.

Boiling mainly depends on temperature(avg kinetic energy of constituents) and external pressure. Here external pressure is reduced using a syringe, first dissolved gasses come out, and gradually water starts boiling.

Observe how boiling rate decreased with time.

What can you say about temperature of remaining water (increase/decrease/remains same)?

Observe only big arms oscillate significantly when any big arm is displaced, similarly for smaller ones.

Natural frequency depends on geometry of oscillator. 

Notice smoke is originating a little away from burning points!!

Smoke is consequence of involved chemical reactions. The temperature at points of origin is sufficient to initiate that reaction. 

Think in terms of reflection about diagonals.