Question

4096, 1,024, 256, 64, ?,?,?

Answer 1

Sequence is, we continually divide four to get the same result:
\[
A_n=4096\cdot4^{1-n}
\]So:
\[
4096\cdot4^{1-5}=\frac{4096}{4^4}=16
\]And:
\[
\frac{16}{4}=4
\]For the last one:
\[
\frac{4}{4}=1
\]And we are done.