John is the son of Jacob.
So,
Jacob is the_____of John's father?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Buy me, smell me or deliver me, I do not change.

Who am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

I travel all around the world but always stay in the corner. What am I?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?