Random Puzzles 

Workings

Hint
The fourth player is the key to this tricky question.

Answer
9 points.

Respectively the scores were 7, 14, 20, 30, 23, 9.

Reasoning
If we label the six players A, B, C, D, E, and F, we know that:

[1]  A + B + C + D + E + F = 103

and from the clues:

   A = B ÷ 2
   B = C – 6
   C = D x 2 ÷ 3
   E = D – A
   F = E – 14

If instead we choose E = A – D, we'd later see that we end up with a negative value for E, which isn't allowed.

Since D is the letter we're missing information for, it's best to find all of the other letters in terms of D.

These steps are left as an exercise (use C in the equation for B, etc), but the result is:

   A = ( D –  9)  ÷ 3
   B = (2D – 18)  ÷ 3
   C = (2D     )  ÷ 3
   D = (3D     )  ÷ 3
   E = (2D +  9)  ÷ 3
   F = (2D – 33)  ÷ 3

Writing it as D = 3D ÷ 3 makes it slightly clearer to see, when adding in the next step.

We can then use these in [1] to find that 12D = 360, so D = 30.

Therefore, F = 9.

Workings

Hint
This is a very common sequence.

Answer
X.

The last letters of the words one, two, three, four, five, six.

Workings

Hint
Think about the 40%, and how many buses that represents.

Answer
72 buses.

Reasoning
The garage is currently full, with 12 more buses outside.

If we increase the garage space by 40%, there will be enough space to house those 12 buses, plus 12 more in the future, a total of 24 buses.

This means that 40% of the current garage capacity is 24 buses.

Therefore, 10% of the current garage capacity is 6 buses.

Therefore, 100% of the current garage capacity is 60 buses.

So, the current garage holds 60 buses, and there are 12 more outside.

Therefore, we have a total of 72 buses.

Double-Checking
They currently have 72 buses, 12 of which are outside, so 60 are inside.

Increasing the garage space of 60 buses by 40% will give room for 60 x 1.4 = 84 buses.

Which is the 72 they currently own, with space for 12 more buses in the future.

This confirms the answer.

Workings

Hint
Both words begin with the letter B.

Answer
Brainy and binary.