"any of you who..."

[Brahman]

If I change "have" to "has" to agree with "any of you", could I change "...your hands" to "...your hand."?

"I will now ask any of you who have information to give, or if you left the place at any time last night between the hours of seven o'clock and seven o'clock this morning, to hold up your hands."

[Paulj]

"have" will work fine. First you have to understand how has, have and had works. So here is the details.
had is past tense: That bird had a yellow feather
has is possessive: That bird has a yellow feather
have is present: I have a yellow feather

[basille]

"have" will work fine. First you have to understand how has, have and had works. So here is the details.
had is past tense: That bird had a yellow feather
has is possessive: That bird has a yellow feather
have is present: I have a yellow feather

What about using have had altogether like, "The birds have had yellow feathers but it is now brown."?
Is that a correct usage?

[tomnew]

What about using have had altogether like, "The birds have had yellow feathers but it is now brown."?
Is that a correct usage?

No, because have is present tense while had is past tense. So the sentence should be "The birds had yellow feathers before but now it is brown."