Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

What does this rebus riddle mean?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

When we see 2 but call 10?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Can you spot the man between the coffee bean in the picture below ?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?