How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

What Time Should the last watch show in the below figure?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

If 21x = 79x, what is the value of x?

How can you make number one disappear by adding something to it?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?