A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What is at the end of a rainbow?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Can anyone tell me a word in the English dictionary which has a silent 'z'?