What's the only room from which no one can enter or leave

Can you make a six-letter word using the letters N, A and B ?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

How can you write nineteen in a manner that if we take out one, it becomes twenty?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

What does this rebus puzzle means ?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

If 1+9+8=1, what is 2+8+9?

Find the hidden panda in the image below.

Replace the question mark with the number below given a simple math problem.