Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

what does the below rebus mean?

I can write cow in 13 letters.

Can You?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

What do you call a fish without an eye?

There are 100 bulbs in a room. 100 strangers have been accumulated in the adjacent room. The first one goes and lights up every bulb. The second one goes and switches off all the even-numbered bulbs - second, fourth, sixth... and so on. The third one goes and reverses the current position of every third bulb (third, sixth, ninth? and so on.) i.e. if the bulb is lit, he switches it off and if the bulb is off, he switches it on. All the 100 strangers progress similarly.

After the last person has done what he wanted, which bulbs will be lit and which ones will be switched off?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?