Quick Brain Teaser

[Platypus]

less than a minute

EDIT: for the first one

[Board Game Geek]

Two minutes.

1 minute to think about the numbers and see if they had any symbolism attached to them, were months, years, historical dates, Long / Lat co-ords, etc

Then another minute to assume that the numbers were just numbers and work on the sequence.

[NickFitz]

About 10s.

EDIT: and I didn't use a calculator

[Churchill]

5 seconds to find the pattern, another 5 for the answer without a calculator.
(First one)

[EternalOptimist]

5 seconds to find the pattern, another 5 for the answer without a calculator.

10s eh ?

well I just did it again, in 9s

[Churchill]

10s eh ?

well I just did it again, in 9s

Who said you can't teach an old hairy bastard new tricks, eh EO?

[Bear]

Well - 'cos I'm fed up with stupid clients asking me to record my time down to the last ******* millisecond - I didn't time myself!!!

However, a quick estimate says about 20 seconds to figure the answer and another 20-25 to prove it with calculator.

nb: first one only - not bothered with second.

[oracleslave]

another 5 for the answer without a calculator.
(First one)

Did you use SKA instead?

[OwlHoot]

About 10s.

EDIT: and I didn't use a calculator

Ditto, to figure out what the number should be although I didn't bother calculating it.

[BrollyBonce]

Here is a harder one:

1, 2, 1.5, 1.666, 1.6...

Too easy

The Golden Ratio.