Alright, since you want contradictions so badly...
Genesis creation:
The two creation accounts are contradictory. Gen 1:1-2:3, Gen 2:4-25
How long did creation take? 1:3-2:3, 2:4
Were plants created before or after humans? 1:11, 2:4-7
When were the stars made? 1:16-19
From what were the fowls created? 1:20-21, 2:19
From what were the animals created? 1:20, 2:19
Were humans created before or after the other animals? 1:25-26, 2:7, 2:18-22
If you take creation literally, it doesn't make sense.
Then there is the issue of Nebuchadnezzar being named as the King of the Assyrians in Judith, when he wasn't king of the Assyrians, he was king of the Babylonians... and he wasn't even kings of the Babylonians in the time of the story of Judith.
Here are a few more:
When was Peter predicted to deny Christ?
Before the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crows - Mt 26:34
Before the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crows twice - Mk 14:30
How many times did the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] actually crow?
Mk 14:72 At that moment the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crowed for the second time. Then Peter remembered that Jesus had said to him, ‘Before the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crows twice, you will deny me three times.’ And he broke down and wept.
Mt 26:74 Then he began to curse, and he swore an oath, ‘I do not know the man!’ At that moment the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crowed. Then Peter remembered what Jesus had said: ‘Before the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] crows, you will deny me three times.’ And he went out and wept bitterly.
John & Luke adhere to Matthew's interpretation. Mark disagrees.
Also, the Gospels do not agree on the Paschal narrative - they disagree with each other on just what happened on which day around which festival.
What colour was the robe Christ wore for his trial?
Mt 27:28 says scarlet; John 19:2 says purple.
From the OT...
How old was Ahaziah when he began to reign?
2 Kings 8:26 says 22
2 Chronicles 22:2 says 42
Who was the mother of Abijah?
2 Chronicles 11:20 says Maachah the daughter of Absalom
2 Chronicles 13:2 says Michaiah the daughter of Uriel
When did Baasha die?
1 Kings 16:6-8 says he died during the 26th year of the reign of Asa
2 Chronicles 16:1 says he died during the 36th year of the reign of Asa
How many kids did Saul's daughter have?
2 Samuel 6:23 says she had none.
2 Samuel 21:8 says she had five sons.
How long did Jehoiachin reign, and how old was he?
2KI 24:8 He was 18, and he reigned for three months.
2CH 36:9 He was 8, and he reigned for three months and 10 days.
NT: Who was St. Joseph's father?
Mt 1:16 says it was Jacob.
Luke 3:23 says it was Heli.
Then there is the whole issue of the census mentioned in Luke 2:1-2:
In those days a decree went out from Emperor Augustus that all the world should be registered. This was the first registration and was taken while Quirinius was governor of Syria.
Quirinius did order a census, but he did so in 6-7AD.
This "worldwide census," however, in which individuals had to return to their ancestral cities, never happened. No other documents record such an event. There was also no practice in the Roman Empire which required people to return to an ancestral city for a census.
Matthew offers a different birth narrative, and describes Jesus' birth taking place during the life of Herod the Great, who died ten years earlier, in the spring of 4 BC.
That is a 12-13 year discrepancy in when precisely Jesus was born. Which date is correct? Luke's, or Matthew's? Modern scholarship sides with Matthew on the issue.
All of these contradictions are well-known.
The Bible contradicts itself. That is a problem only if you treat it as a foolproof history book. The inerrancy of Scripture does not depend on such things. It depends on the story of our Salvation, the truths of what God has shared with humanity, and the theology and morality contained within the Bible. The Bible itself is comprised of several different forms of literary writing - apocalyptic literature, which was never meant to be taken literally; poetry and song; allegory; fables; prophecy... etc. Taking everything, or even most things, literally really lessens the beauty and impact of it all.