1.the total ages of two boys is seventeen.what will it be si

1.the total ages of two boys is seventeen.what will it be six years later?2.two pigs are before one pig.two pigs are after one pig.one pig is inthe middle.How many pigs are there at least?3.My name is Tom.My father and mother have six children.Half are boys andhalf are girls.How many brother and sisters do I have?4.which number stands for nothing without its tail?5.there is a note no the door of my uncle:IM2BZ2CU.what does it mean?