Using shift value of 15, encode letter r.

Using shift value of 9, decode letter D and identify its plaintext.

Using shift value of 12, decode M and identify its plaintext.

Using shift value of 19, decode Z and identify its plaintext.

Joe encoded letter h to S. What is the value of the shift he used?

Ahmed decoded letter r from E. What is the value of the shift he used?

Using Morse Code, decode:

... - .- .-.

Using Morse Code, decode:

.--. .-. .- .. ... .

Encode this:

emirates

Encode this:

national

Using Semaphore, encode:

UAE

Decode the Semaphore above.

Decode the one above.

Decode:

..-. . -.. . .-. .- - .. --- -.