Puzzle a Day!

^^^ Not from my phone. Still struggling with receiving calls!

^^^ Not from my phone either. but on most normal peoples phones.

That's almost how I would do it jjb.

I  expect it can be done by testing the heat of a lit bulb

But how? 
3 switches, 3 bulbs, one entry into room?

Turn one

I  expect it can be done by testing the heat of a lit bulb

But how? 
3 switches, 3 bulbs, one entry into room?

Turn on the first switch, wait, say half an hour till you can be sure the bulb is very hot, then turn it off and turn on the second switch, just for a few minutes so the bulb is warm. Then you have a red hot bulb, a warm bulb and a cold bulb. Enter the room and touch.
Or just do the first bulb, then turn on the next and enter the room. You will then have an unlit hot bulb, a lit bulb and an unlit cold bulb.

edit - the more times I write "bulb", the stranger the word seems.

What phrase is represented here?

2          LATE  LATE

Did we get the answer to this one?I thought it was too little, too late

So did I. Although I like JJB's 2 large lattes better.

Bulbs go in the ground.....lamps give off light

Bulbs go in the ground.....lamps give off light

 Puzzle edited for the Boss


3 switches, 3 LAMPS, one entry into room?

Time for a new puzzle as, between you, you've worked out the bulbs/lamps one.

Each letter of the alphabet used here has been given a numerical value. Can you work out the value of the word POTATO?

TOO = 4 TOP = 6 TAP = 9

15