h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

? So Icy, how many miles did you walk each day ?

That would be telling!

You have to work it out. I reckon Arty's week starts on Sunday.

in that case, you walked 9 miles on the first day, and 17 miles on the last day -I think

I reckon he walked 12 miles the first day increasing to 20 the last day.

On second thoughts B'Elana is right.

Sunday: 9
Monday: 10
Tuesday: 11
Wed. 12
Thursday 13
Friday: 14
Sat. 15
Sunday 16
Monday 17

total: 117

I'd better post a new one then, I think

Tom and a car are going from a fixed line to a certain point in the same direction, their speed doesn't change. The car reaches the destination after Tom has made 13 steps. After a further 91 steps, Tom has reached the destination. His speed was 6km/h. How fast was the car ?

Is it 24km/hour?

sorry I'm tired I meant 48.

That's correct puzzlella, over to you

A rotating display unit in a shop has a square base with the axis at the midpoint. Describe the space around it which is needed to avoid colliding with anything.

Well the space that the square occupies in rotation is the circle having a diameter equal to the square's diagonal.

If the square has a side of unit length, then the diagonal is the square root of two, and the circle has an area of pi times the square root of two.

I was still searching for the words to say exactly this

In that case I'll leave you to describe the transformational symmetries involved.

Nothing complicated - just use standard bases within the R² domain.

Show off

Well, you started it.

Moi ?

Your turn, I think

Which US State name can be typed with only the left hand on a QUERTY keyboard, and which can be typed with only the right hand?

Nevada, Ohio ?

If you've got the same keyboard as I have, then N for Nevada is on the right-hand side. Ohio is correct.