Find the number of all possible triangles that can be formed from the triangle given below.

Use the numbers given in the figure form a $3\times 3$  magic square.

Convert the tree diagram into a numeric expression.

Find the total time (in hours) taken by the bus to reach from $\mathrm{A}$ to $\mathrm{E}$ via $\mathrm{B}, \mathrm{C}$ and $\mathrm{D}$.

Find which is the shortest route from $\mathrm{A}$ to $\mathrm{E}$.

You are going to have an ice-cream or a cake. There are three flavours (chocolate, strawberry, vanilla) in ice-creams and two flavours (orange or red velvet) in cakes. In how many possible ways can you choose an ice-cream or the cake?