Prove that the below maths equation is true.

8 + 8 = 91

I have an eye but still cannot see.

Who am I?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

Find the next number in the series.
1 10 24 43 67 ?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Can you find the hidden animal in the picture below?