this is letter to number messaged 6 18 5 5 17 16 9 15 21 20! example, A=1 in the alphabet Z=26 so example, 8 9 = h i

☾                                                                                            ☀

input given: 6 18 5 5 17 16 9 15 21 20

processing data...                            ❆

output: FREE QPI OUT

Table:

6 ⇔F

18 ⇔R

5 ⇔E

5 ⇔E

17 ⇔Q

16 ⇔P

9 ⇔I

15 ⇔O

21 ⇔U

20 ⇔T                      ⚡⚡

Solution:

The given example states that:

A = 1⇒ A = The first letter of the alphabet

Now, let's decode the number code.

Decoding the number code:

6 = sixth letter of the alphabet = F18 = eighteenth letter of the alphabet = R5 = fifth letter of the alphabet = E5 = fifth letter of the alphabet = E17 = seventeenth letter of the alphabet = Q16 = sixteenth letter of the alphabet = P9 = ninth letter of the alphabet = I15 = fifteenth letter of the alphabet = O21 = twenty-first letter of the alphabet = U20 = twentieth letter of the alphabet = T

Coded word: F R E E Q P I O U T ⇒ Freeqpiout

1st riddle: Age. This took me a long time!

2nd riddle: 14 people in the family. The parents (who are 2 people), the 6 daughters, and the 6 brothers, as they each have one brother.

3rd riddle: A shadow.