I shave every day, but my beard stays the same. What am I?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

There is something which you can be arrested for attempting but not for successfully completing.

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What can go through glass without breaking it?

what does this below rebus represent identXQQQQQME

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?