Draw the figure for Square prism and verify Euler's formula.

Solve the following crossword puzzle (using numeric figures only).

Across
   $1.$ Height of a cuboid of volume $276$ cubic units and base area $23$ square units.
   $3.$ Number of $5$ unit cubes that can be cut off from a cube of edge $20$ units.
   $5.$ Surface area of a cupboard of dimension $10$ units $\times$$12$ units $\times$ $14$ units
   $7.$ Perimeter of rectangle whose length is $60$ units and breadth is $44.5$ units
$$$8.$ CSA of a cylinder whose volume is $1232$ cubic units and height is $8$ units 
   $9.$ Volume of a cylindrical well $20 \mathrm{m}$ deep, having base diameter of $7 \mathrm{m}$

Down
$1.$ Volume of air in room of dimensions $8$ units $\times 6.5$ units $\times 3.5$units
$2.$ Number of persons in a room of dimensions $16$ units $\times 12.5$ units $\times 4.5$ units if each person occupies $3.6$ cubic units of space
$4.$ TSA of a cylinder of height $10$ units and base diameter $42$ units
$6.$ Litres of water held by a rectangular tank of dimensions $2.75 \mathrm{m}\times 1.80 \mathrm{m}\times 1.4 \mathrm{m}$