Solution: Day is not defined in the pre-defined attribute list of input tag. Week attribute defines week and year when used as attribute in input tag. Month specifies month and year when it is accessed in input tag. The time attribute displays current time in html.

Solution: A scalar measurement within a range or fractional value is defined by meter tag. A list/menu of coommands is displayed by menu tag in html. The details tag specifies additional details that the user can view or hide on demand. The details tag can be used to create an interactive widget that the user can open and close. Any sort of content can be put inside the 
 tag. Progress of a task is done by progress element.

Solution: A scalar measurement within a range or fractional value is defined by meter tag. The menu tag defines a list/menu of commands. The menu tag is used for context menus, toolbars and for listing form controls and commands. The details tag specifies additional details that the user can view or hide on demand. The details tag can be used to create an interactive widget that the user can open and close. Any sort of content can be put inside the 
 tag. Progress of a task is done by progress element.

Solution: Embed attribute attach external content at a specified point in document. The seamless attribute is a boolean attribute. When present, it specifies that the iframe should look like it is a part of the containing document (no borders or scrollbars). Allow-forms re-enables from submission. Scripts are re-enabled by allow-scripts.

Solution: Scripts are re-enabled by allow-scripts. The sandbox attribute enables an extra set of restrictions for the content in the iframe. Allow-forms re-enables from submission. Allow-same-origin allows iframe content to be treated as being from the same origin. API’s are re-enable by allow-pointer-lock.

Solution: Scripts are re-enabled by allow-scripts. Allow-forms re-enables from submission. Allow-same-origin allows iframe content to be treated as being from the same origin. API’s are re-enable by allow-pointer-lock.

Solution: 

Solution: The datalist tag is used to provide an “autocomplete” feature on input elements. Users will see a drop-down list of pre-defined options as they input data. Password defines password field in HTML. It is attribute for input-type. The  element references from data after form has submitted. Result of calculation (script) is represented by output tag.

Solution: HTML form element is used in its  tag having its own structure which is used by users for various tasks. If you have a long list of options, groups of related options are easier to handle for a user. Result of calculation (script) is represented by output tag. A drop down list of items is defined by  tag in HTML.

Solution: While testing of HTML5 for a browser i.e. whether its elements are supported by the browser or not one can use draggable content using Drag action and this action can be called through On-Screen Action operation.