Test blank post title field.
After publishing, check permalink

Test link with 2 http://

While creating a Table of Content for Robotics for Children to prepare for the post showing how to Make Table of Content with Link List, suspect why some ended up with the link leading to blank page was because they forget to not include the http:// already added to the field for the Site URL, then ending up with 2 http:// in the url. So now I create that link below with
http://http://www.bloggertipsandtricks.com/2015/03/create-table-of-content-with-link-list-gadget.html
and see what happens when clicking on the link:

Make Table of Content with Blogger Link List

Test picture alignment all in a row

Actually 2 rows because the 8 pictures can't fit into a single row so have to split them between two rows. Also, either the picture size reduced or the main column width have to be increased

test iFrames

http://www.hasil.gov.my/pdf/pdfam/PR4_2011.pdf

Test embedding unlisted Youtube video