Before Mount Everest was discovered, what was the highest mountain in the world?

What is the Surname of Barbie Doll?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

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

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

What month of the year has 28 days?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

What has many keys but can’t open a single lock?