A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Can you find the missing piece of the Porsche?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

O_er_t_o_

Complete the missing letters of the given word.

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?