Which is the rope you never skip with?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

How can you take 2 from 5 and leave 4?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

You can hear me, but you can't touch or see me.

What am I?

What work can one never finish?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

Can you find the dog hidden in a group of pandas?