It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

How many words can a pen with half refill write?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

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

Can you solve the below tricky visual equation?

By what process could you make a 'Tea-Table' into food?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?