Random Puzzles 

Workings

Hint
Look at Q2 first.

Answer
Q1. d)
Q2. c)
Q3. a)
Q4. b)

Reasoning
Let's look at Q1 first, and check each possible option:

If Q1's answer was a):
…we'll leave checking this for now, because…

If Q1's answer was b):
…we'll leave checking this for now, because…

If Q1's answer was c):
it would reference itself, and we'd learn nothing new, and we'd then have to check Q2.

So, let's start with Q2 first instead of Q1.

If Q2's answer was a):
   an immediate contradiction, as Q4 can't be the first answer with a) as we've assumed Q2's answer is a).

If Q2's answer was b):
   an immediate contradiction, as Q2 can't be the first answer with a) as we've assumed Q2's answer is b).

If Q2's answer was c):
   Q3's answer would be a)
   Q1's answer would be d)
   confirming Q2's answer as c)
   leaving Q4's only possible answer as b)
   no contradiction.

If Q2's answer was d):
   Q1's answer would be a)   (*)
   Q3's answer would be c)
   Q4's answer would be d)
   Q1's answer would be b)
   but this contradicts the section marked (*).

Therefore, the only possible answer with no contradiction is when Q2's answer is c).

We can then follow Q2's answer, which leads to the answers to Q1 to Q3. Q4 must then reference itself.

Workings

Hint
Each large square adds to 11.

Answer
 

Workings

Hint
One of the words is gone.

Answers
bo + nd = bond
br + ew = brew
fo + am = foam
go + ne = gone
ho + pe = hope
jo + ke = joke
le + af = leaf
lo + af = loaf
lo + ud = loud
so + re = sore

Workings

Hint
The answers are related to time.

Answer
60.

The numbers represent 100 years in a century, 365 days in a year, 24 hours in a day, 60 minutes in an hour and 60 seconds in an minute.