Can someone choose a geometry topic, so I can make a puzzle

Long division the problem is 40 ➗ 348 = ?

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?