'Corn measure' in the Bible

Men do not light a lamp and put it under the corn-measure, but on the lamp-stand, where it gives light to every one in the house.

And Jesus said to them: "Is a lamp brought to be put under the corn-measure or under the couch, instead of being put on the lampstand?

No one sets light to a lamp, and then puts it in the cellar of under the corn-measure, but he puts it on the lamp-stand, so that any one who comes in may see the light.