Random Puzzles 

Workings

Hint
The sequence is related to prime numbers.

Answer
29.

Each term increases by the next prime number.

Workings

Hint
How many days separate the two dates?

Answer
18 days.

Reasoning
There are 140 days between the two dates, and these 140 days are split in the following way:

   4 x Answer | 50 days | Answer

We already know about 50 days, so we have to split the remaining 90 days into the ratio 4:1, which is 72:18.

   72 days | 50 days | 18 days

Workings

Hint
A baker's dozen is 13.

Answer
Hours in a week.

Reasoning
A dozen is usually 12, but a baker's dozen is usually 13.

So a dozen (12) baker's dozen (13) = 12 x 13 = 156.

There are 24 hours in a day, and 7 days in a week.

So there are 24 x 7 hours in a week = 168.

Workings

Hint
The puzzle contains the question.

Answer
26.

Reasoning
The puzzle reads 'how many letters in this puzzle'.

The puzzle's letters alternate between the top and bottom lines.