Selecting random records from datareader and putting it in label

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VB

Hello friends i am trying to make a examination application in which i want to show random questions in labels on form.so that the examinees should not get every question in sequence.
how should i achieve it?pls tell me.
currently i am able to select only the first record of the data reader in label.here's the code

Imports System
Imports System.Data
Imports System.Data.OleDb
Imports System.Data.SqlClient
Public Class Form1
    'Create ADO.NET objects.
    Public myConn As SqlConnection
    Public myCmd As SqlCommand
    Public myReader As SqlDataReader
    Public myDs As New DataSet
    Public myAdp As SqlDataAdapter
    Public results As String
    Public n As Integer
    

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        
        'Create a Connection object.
        myConn = New SqlConnection("Data Source=testvm;Initial Catalog=ULSLLIVE;Integrated Security=True;")
        'Create a Command object.
        myCmd = myConn.CreateCommand
        myCmd.CommandText = "SELECT * FROM questions"
        'Open the connection.
        myConn.Open()
        myReader = myCmd.ExecuteReader()
        myReader.Read()
        Me.Label1.Text = myReader("q")
        Me.RadioButton1.Text = myReader("a1")
        Me.RadioButton2.Text = myReader("a2")
        Me.RadioButton3.Text = myReader("a3")
        Me.RadioButton4.Text = myReader("a4")

    End Sub
End Class