Solution:

The last marble will be yellow.

Since marbles can only be taken out in pairs and you started off with an odd number of yellows there is always going to be one yellow left over that you'll keep putting back in the box until it's left on it's own.

Solution:

36 meters.

100/v1 = 80/v2
100/v2 = 80/v3

20+(20/v2)*v3=20+16 = 36

Solution:

20(Twenty) : when you write them , these are only numbers having vowel 'E'

Solution:

58.

As we know LCM of the numbers 3 4 5 & 6 is 60.

So if i divide 60 by any of the four number , it gives remainder as 0.
Now to get reminder as desired, is should be 2 short of 60. (3-1,4-2,5-3,6-4 )

Solution:

The answer is C.

These are letter of the question asked in reverse order.

Solution:

Heroine

Solution:

20 + 20 + 20

55 + 5

Solution:

charles put the ring into the box, secure it with one of your locks, and send the box to the girl firend.
She should then attach one of his own locks and return it. When you receive it again, remove your lock and send it back with her lock. Now she can unlock his own lock and retrieve the object.

Solution:

"Hold up one of your shields and I will pierce it with one of your spears," said Birbal with a smile.

Solution:

11 / .11