Which alphabet is a part of our body?

I look at you, you look at me, I raise my right, you raise your left. What am I?

How many words can a pen with half refill write?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

Can you count the number of triangles inside a triangle?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?