The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member.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

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What is the next number in this matchsticks series riddle?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

What is the next number in this series?

4,12,84,3612....

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

No matter how little or how much you use me, you change me every month. What am I?

What is the word or phrase?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?