Can you find the missing piece of the Porsche?

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?

You can hear me, but you can't touch or see me.

What am I?

Prove that twice of ten is the same as twice of eleven.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

I am the fastest animal but cannot climb the tree. What am I?

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

By moving just one matchstick, you need to make the below statement true. Can you do it?