A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What word begins and ends with an E, but has only one letter?

Can you solve the photo plexer logic ?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

What breaks yet never falls, and what falls yet never breaks?

what's the probability of getting a king or a queen from a pack of 52 cards?

Next Number in the Series,

5, 16, 49, 104, ?

What can you hold in your right hand, but never in your left hand?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

Complete the table series riddle by finding the number that can replace "??".