Random Puzzles 

Workings

Hint
Tomorrow's yesterday is always today.

Answer
Today.

Reasoning
Tomorrow's yesterday is always today.

And yesterday's tomorrow is also always today.

Workings

Hint
Light travels over 186,000 miles each second.

Answer
Miles travelled by light in a second.

Reasoning
Light travels over 186,000 miles per second.

There are 2.54 cm in an inch, 12 inches in a foot, 3 feet in a yard, and 1760 yards in a mile. So there are 2.54 x 12 x 3 x 1760 = 160,934.4 cm in a mile.

Workings

Hint
Does the number of adults and children matter?

Answer
3,672.

Reasoning
The actual number of adults and children doesn't matter.

For example, if all of the people were adults, then half of them (306) would be given 12 sweets:

  306 x 12 = 3672

For example, if all of the people were children, then three quarters of them (459) would be given 8 sweets:

  459 x  8 = 3672

For example, if there were 512 adults (so 256 would get 12 sweets = 3072) and 100 children (so 75 would get 8 sweets = 600):

  256 x 12 + 75 x 8 = 3672

As you can see, we can change the numbers of adults and children, and it doesn't change the answer.

The reason for this lies in the fact that
   ¹/₂ adults x 12 sweets
and
   ³/₄ children x 8 sweets
both equal 6 sweets.

Workings

Hint
One of the words is clockwise.

Answers
foo + tpr + int = footprint
som + ewh + ere = somewhere
pin + eap + ple = pineapple
tec + hni + que = technique
ref + ere + nce = reference
pro + fes + sor = professor
bio + gra + phy = biography
clo + ckw + ise = clockwise
bar + ome + ter = barometer