The score is always 0-0 before the game.

Mushroom.

They all have the same amount of weight. ONE POUND of Feathers. ONE POUND of meat. And ONE POUND of rocks!

Coconut

The man did exactly as he said he would and wrote "your exact weight" on the paper.

All animals, buildings don't jump.

The balloon sways to the left, unlike you and your niece. This is because:

Inertia causes everything in the car to move to the right (relative to the car) when the car turns left.
The helium-filled balloon is lighter than the air around it, so the air has greater inertia. So the all the air shifts to the right and displaces the balloon to the left.

Of course, when the trains encounter, they will be approximately the same distance away from New York. The New York train will be closer to New York by approximately one train length because they're coming from different directions. That is, unless you take "meet" to mean "pefectly overlap".

King Tee.

Fire.

54

x+y = 15
x-y = 3

2x = 18 => x = 9; y=6

59.

Let the number is N which when divide by 3,4 , 5 leaves reminder It means N+1 should divide by 3, 4 and 5
If the number is completely divide means it should be multiple of 3,4, and 5
N + 1 = 3 x 4 x 5 = 60
N = 60 - 1 = 59