Name a key which is hardest to turn.

Find the number of squares in the below-given picture.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Why is it very easy to weigh a fish?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Solve the puzzle by telling what does below picture means.

What does below Rebus mean ?

esgg sgeg gegs gsge

I have feet, but no legs. Which animal Am I?