Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

How many bananas can you eat if your stomach is empty?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

What does below Rebus mean ?

esgg sgeg gegs gsge

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?