What occurs twice in a week, once in a year but never in a day?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Find the missing number in the image below.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Find the next number in the series below

21 32 54 87 131 ?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

What has a bottom at the top?