IT IS IN FOOTBALL BUT HOT IN CRICKET IT IS PRE RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Dragon Did you answer this riddle correctly?
YES  NO  

Santa Did you answer this riddle correctly?
YES  NO  

Christmas tree Did you answer this riddle correctly?
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Air conditioner Did you answer this riddle correctly?
YES  NO  

The $9 paid by each guest accounts for the $2 that went to the bellhop. So rather than adding $27 to the $2 kept by the bellhop, the $27 accounts for the bellhops money. The $27 plus the $3 kept by the guests does add up to $30. Did you answer this riddle correctly?
YES  NO  

Current Future Past

Princess x 2z (x+y)/2
Prince y x z

I then created three equations, since the difference in their age will always be the same.

d = the difference in ages

x y = d
2z x = d
x/2 + y/2 z = d

I then created a matrix and solved it using row reduction.

x y z

1 -1 0 d
-1 0 2 d
.5 .5 -1 d

It reduced to:

x y z

1 0 0 4d
0 1 0 3d
0 0 1 5d/2

This means that you can pick any difference you want (an even one presumably because you want integer ages).

Princess age: 4d
Prince age: 3d

Ages that work

Princess:
4
8
16
24
32
40
48
56
64
72
80

Prince:
3
6
12
18
24
30
36
42
48
54
60 Did you answer this riddle correctly?
YES  NO  

Watermelon Did you answer this riddle correctly?
YES  NO  

There is no mail on Sundays. Did you answer this riddle correctly?
YES  NO  

I am a cake Did you answer this riddle correctly?
YES  NO  

Oven Did you answer this riddle correctly?
YES  NO  

I am the hospital Did you answer this riddle correctly?
YES  NO  

Piano Did you answer this riddle correctly?
YES  NO  

It was a coconut Did you answer this riddle correctly?
YES  NO  

Window Did you answer this riddle correctly?
YES  NO  

Its a stapler Did you answer this riddle correctly?
YES  NO