Thank you, Aditya.

Now let me ask you about second big problem with my setup.
I cannot get itemize indent woking properly. I need it be the same as 
bodytext indent (starting from the bullet) and the first line indented 
too. Please, help me with it.

Vyatcheslav

> Change location=serried to location=top. Serried ignores the inbetween 
> option as it does not make sense with serried.
>
> Aditya 

\setupindenting[yes, big]

\setupitemize[each][1,packed,nowhite,text]

\definedescription[reviewquestions][location=top, text={Review 
questions}, before={\blank[small]\startitemize}, 
inbetween={\blank[small]}, after={\stopitemize\blank[small]}]

\starttext

The section ends here. The section ends here. The section ends here. The 
section ends here. The section ends here. The section ends here. The 
section ends here.The section ends here. The section ends here. The 
section ends here.

The section ends here. The section ends here. The section ends here. The 
section ends here. The section ends here. The section ends here. The 
section ends here. The section ends here.

\startreviewquestions

\item Question 1. Question 1. Question 1. Question 1. Question 1. 
Question 1. Question 1. Question 1. Question 1. Question 1. Question 1. 
Question 1. Question 1.

\item Question 2. Question 2. Question 2. Question 2. Question 2. 
Question 2. Question 2. Question 2. Question 2. Question 2. Question 2. 
Question 2. Question 2.

\item Question 3. Question 3. Question 3. Question 3. Question 3. 
Question 3. Question 3. Question 3. Question 3. Question 3. Question 3. 
Question 3. Question 3.

\stopreviewquestions

The next section starts here.

\stoptext