Solution:

Forty

Solution:

0! or cos(0)

Solution:

245 minutes

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

Solution:

24miles/hr (not 25miles/hr which might be guessed by many)

D : distance traveled
T1 : time of going to office
T2 : time of returning back
Y : Average Speed

D = 20 * T1
T1 = D/20

D = 30 * T2
T2 = D/30


2D = Y(T2 + T1)
2D = Y(D/20 + D/30)
2D = Y(3D/60 + 2D/60)
2D = Y(5D/60)
Y = 120D/5D

=> Y = 24

Solution:

Old password : altered

New Password : distinct

Solution:

The answer is C.

These are letter of the question asked in reverse order.

Solution:

Name

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:

Short

(shorter - er = short)