use std::io::{self, Read as _, Write as _};

struct Scanner<'a>(std::str::SplitWhitespace<'a>);

impl<'a> Scanner<'a> {
    fn new(s: &'a str) -> Self {
        Self(s.split_whitespace())
    }

    fn next<T>(&mut self) -> T
    where
        T: std::str::FromStr,
        T::Err: std::fmt::Debug,
    {
        let s = self.0.next().expect("found EOF");
        match s.parse() {
            Ok(v) => v,
            Err(msg) => {
                println!(
                    "parse error. T = {}, s = \"{}\": {:?}",
                    std::any::type_name::<T>(),
                    s,
                    msg
                );
                panic!()
            }
        }
    }
}

fn main() {
    let mut stdin = String::new();
    std::io::stdin().read_to_string(&mut stdin).unwrap();
    let mut sc = Scanner::new(&stdin);
    let stdout = io::stdout();
    let mut stdout = io::BufWriter::new(stdout.lock());

    let n: usize = sc.next();
    let a = (0..n)
        .map(|_| sc.next())
        .collect::<Vec<u64>>()
        .into_boxed_slice();
    let q: usize = sc.next();
    let b = (0..q)
        .map(|_| sc.next())
        .collect::<Vec<u64>>()
        .into_boxed_slice();

    let mut rem: u64 = !(!0 << 60);

    let (a, has_front) = {
        let mut c = vec![];
        let mut has_front = false;
        for a in a.into_vec().into_iter().rev() {
            if rem & a != 0 {
                c.push(a & rem);
                rem &= !a;
                has_front = false;
            } else {
                has_front = true;
            }
        }
        (c.into_boxed_slice(), has_front)
    };

    dbg!(&a);

    for mut b in b.into_vec() {
        let mut count: usize = 0;
        let mut valid: bool = true;
        for &c in a.iter() {
            if b & c == 0 {
                count += 1;
                b = !b;
            } else if !b & c == 0 {
            } else {
                valid = false;
                break;
            }
        }
        if b & rem == 0 {
        } else if !b & rem == 0 {
            if has_front {
                count += 1;
            } else {
                valid = false;
            }
        } else {
            valid = false;
        }
        if !valid {
            writeln!(stdout, "-1").unwrap();
        } else {
            writeln!(stdout, "{}", count).unwrap();
        }
    }

    stdout.flush().unwrap();
}