VB.Net updating access record

This is about a question/answer utility forum being built in VB.NET. The questions are getting saved in the access database, for the same question user has to pick a yes or no check button and then answer in a text box. This does not work. Error says

Error in Update syntax

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
    Dim constr As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\\myforum.accdb;"
    Dim Con As OleDbConnection = New OleDbConnection(constr)
    Con.Open()
    Dim com As OleDbCommand = New OleDbCommand
    com.Connection = Con
    Try
        Dim CheckedRows =
            (
                From Rows In DataGridView1.Rows.Cast(Of DataGridViewRow)()
                Where CBool(Rows.Cells("Answer").Value) = True
            ).ToList
        If CheckedRows.Count = 0 Then
            MessageBox.Show("Nothing checked")

        Else
            com = New OleDbCommand("UPDATE fquestions set reply VALUES('" & TextBox3.Text & "')", Con)
            Dim Num As Integer = com.ExecuteNonQuery
            If (Num <> 0) Then
                MessageBox.Show("Replied the question....", "Add Record", MessageBoxButtons.OK, MessageBoxIcon.Information)
                Me.Close()
            Else
                MessageBox.Show("Record is not Added....", "Add Record Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
            End If
        End If
        Con.Close()
    Catch ex As Exception
        MessageBox.Show(ex.Message)
    End Try
End Sub