Solution:

0! or cos(0)

Solution:

28 =>1+2+4+7+14

cannot be 1 (as number cannot be included)

Solution:

245 minutes

It will take 49 cuts not 50.
so 49*5 => 245 minutes

Solution:

There are 3 fruits (1 grapes, 1 apples, and 1 oranges).

Solution:

12,345,678,987,654,321

(its amazing and awesome)

Solution:

303 , 303 , 303 , 303 , 303

Solution:

pi * z * z * a

Solution:

10 miles
Speed us 10miles/hour

Solution:

5*(X+6) = (X+6)+21
4*(X+6) = 21
X+6 = 5.25
X = -0.75

So Brad is at top of Kukki.

Solution:

All other shapes are quadrilaterals, while a hexagon has six sides.