Question

Between 2000 and 3000

Odd number

Digit in the tens place is 6

Digits in the ones place and the hundreds place are the same

Answer 1

we have 2x6y
where y is one of 1,3,5,7,9
so that leaves only 5 possible numbers, starting with
2161
and so on

Answer 2

2161, 2363, 2565, 2767, 2969

Answer 3

Whose