What should the teacher focus on on the occasion of selecting the supporting material similar to teaching.

IQ of talented child is 140, whose statement is this.

In a certain code TASK is written as 6 and WITH is written as 6, then how can HAND be written in that code?

A man walks 5 km towards the north. From there he turns right and walks 15 km. Then he turns back and walks 20 km. From there he turns to left and walks 20 km. Finally, he turns to left and walks 5 km. How far and in which direction is he with reference to his starting point?

In a certain code ROSE is written as @%$# and PREACH is written as *@#18&, then how can SEARCH be written in that code?

Find the difference between mean and median in the given data 2.5, 4.6, 7.2, 3.3, 4.9, 5.6, 2.7?

If the area of a rhombus is 240 square feet if it's one diagonal is 16 feet, then what is the length (in meters) of the side of the rhombus?

Radhe buys two TVs at the same cost price, one of them is sold at $$11 {1\over 9}\% $$ profit and the other at   $$14{2\over 7}\% $$ profit, then the difference between their selling price is Rs $${200\over 7}$$. Find the cost price of the TV.