Using all digits `2,3, 4,5,6` how many even numbers can be formed

Using the digits 0,1,2,3,4,5,6 how many 4 digit even numbers can be made,no digit being repeated?

Using all the digits 1,4,5,8,9 in how many ways can numbers be formed,so that the numbers would be even.

If repetition is allowed, how many even numbers of two digits can be formed with the digits 1,2,3,4,5?

A number of four different digits is formed with the help of the digits 1,2,3,4,5,6,7 in all possible ways. (i) How many such numbers can be formed? (ii) How many of these are even?

A number of four different digits is formed with the help of the digits 1,2,3,4,5,6,7 in all possible ways. (i) How many such numbers can be formed? (ii) How many of these are even?

How many numbers can be formed using all the digits 1,2,3,4,3,2,1 such that even digits always occupy even places ?

How many 6- digits even numbers can be formed from 2,3,5,3,4,5 alone ?

How many four digits even numbers with distict digits can be formed out of the digits 0,1,2,3,4,5,6?

How many numbers can be formed using the digits 1,2,3,4,2,1 such that even digits occupies even place?