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?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member.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

Count the Triangle in the figure given below:

What has 13 hearts but no other organs?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What does this rebus mean?

O
N
C
E
TIME

Can you solve the below algebraic mathematical equation?

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

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _