Random Puzzles 

Workings

Hints
The first letters of the words are: C, A, C, B, L, L, P, S, C.

Answers
coagulate = catalogue cavitates = activates bacterial = calibrate balancers = barnacles headlamps = lampshade milestone = lemoniest or limestone telephony = polythene dignifies = signified unnoticed = continued

Workings

Hint
The bottom word begins with M.

Answer

Workings

Hint
At each stage, a new dot appears at the top.

Answer
 


Reasoning
At each stage, a new dot starts at the top. The first dot moves clockwise, the second dot moves counter-clockwise, the third dot moves clockwise, etc.

Workings

Hint
Look at the letter positions in the alphabet.

Answer
R.

If you take the alphabetic positions of each letter in a row, the total is always 56.

Double-Checking
Y + G + W + A = 25 +  7 + 23 +  1 = 56
K + L + R + O = 11 + 12 + 18 + 15 = 56
Z + J + P + D = 26 + 10 + 16 +  4 = 56
V + F + T + H = 22 +  6 + 20 +  8 = 56