Missing letters puzzles

1.
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Missing Letter Puzzle: Replace the question mark with correct letter?

Answer:

F

Explanation:

The letters A-Z are valued 1-26. In each set, the sum of the values of the four outside letters, divided by the value of the middle letter, is equal to the value of the bottom left letter, so the mystery letter is F (6).

2. Missing letter puzzle: Find the missing letter from the below series?

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Answer: V

Explanation:

The letters A-Z are valued 1-26. In each set, the two numbers on the left multiplied together, minus the sum of the two numbers on the right, equals the value of the middle letter, so the mystery letter is V (22)

3. Missing Letter Puzzle: Find the missing letter from the below series?

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Answer: K

Explanation:

The letters in the second and third rows are five steps ahead of those in the first and second rows respectively.

So, the missing letter will be five steps a head of F, which is K.

4. Missing Letter Puzzle: Find the missing letters from the below series?

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Answer: WKJ

Explanation:

The letter in the second column is three steps behind that in the first column, and the letter in the third column is four steps behind that in the second column.

So, the missing letter in the first row will be three steps behind Z, which is W.

The missing letter in the second row will be four steps behind O, which is K.

The missing letter in the third row will be three steps ahead of G, which is J.

5. Missing Letter Puzzle: Find the missing letter from the below series?

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Answer: R

Explanation:

Putting A = 1, B = 2, ..., Z = 26, we get the given matrix as

Clearly, 1st column + 2nd column = 3rd column.

Now, 5 + 13 = 18.

So, the missing letter is the 18th letter of the alphabet, which is R.