The following is a Student Table from a database. Write your SQL queries to answer the following questions:

Student$\_$ID$,$ Name, Age, Gender, Grade

$1,$Sarah, $18,$ Female, $90$

$2,$Mohamed, $19,$ Male, $85$

$3,$ Ahmed, $17,$ Male, $77$

$4,$ Maryam, $18,$ Female, $92$

$5,$ Saeed, $20,$ Male, $87$

$1-$ Retrieve the Name and Age of students with a Grade greater than $89.$

$2-$ Retrieve the count of Male students in the student table.

$3-$ Retrieve the average Grade of all students.

$4-$ Update the Grade of the student with Student$\_$ID $3$ to $90.$

$5-$ Delete the record of the student named "Ahmed".

$6-$ Insert a new student into the table.